"""
KEY MANAGEMENT

All /key management endpoints

/key/generate
/key/info
/key/update
/key/delete
"""

import asyncio
import copy
import inspect
import json
import math
import os
import re
import secrets
import traceback
from collections.abc import Mapping
from datetime import datetime, timedelta, timezone
from typing import Any, Callable, Dict, List, Literal, Optional, Tuple, cast

import fastapi
import yaml
from fastapi import APIRouter, Depends, Header, HTTPException, Query, Request, status

import litellm
from litellm._logging import verbose_proxy_logger
from litellm._uuid import uuid
from litellm.constants import (
    LENGTH_OF_LITELLM_GENERATED_KEY,
    LITELLM_PROXY_ADMIN_NAME,
    UI_SESSION_TOKEN_TEAM_ID,
)
from litellm.litellm_core_utils.duration_parser import duration_in_seconds
from litellm.litellm_core_utils.safe_json_dumps import safe_dumps
from litellm.proxy._experimental.mcp_server.db import (
    rotate_mcp_server_credentials_master_key,
    rotate_mcp_user_credentials_master_key,
    rotate_mcp_user_env_vars_master_key,
)
from litellm.proxy._types import *
from litellm.proxy._types import LiteLLM_VerificationToken
from litellm.proxy.auth.auth_checks import (
    _delete_cache_key_object,
    can_team_access_model,
    get_org_object,
    get_project_object,
    get_team_object,
)
from litellm.proxy.auth.auth_utils import abbreviate_api_key
from litellm.proxy.auth.user_api_key_auth import user_api_key_auth
from litellm.proxy.common_utils.callback_utils import (
    decrypt_callback_vars,
    encrypt_callback_vars,
)
from litellm.proxy.common_utils.rbac_utils import check_org_admin_can_generate_keys
from litellm.proxy.common_utils.timezone_utils import get_budget_reset_time
from litellm.proxy.common_utils.user_api_key_cache import UserApiKeyCache
from litellm.proxy.hooks.key_management_event_hooks import KeyManagementEventHooks
from litellm.proxy.hooks.model_max_budget_limiter import (
    VIRTUAL_KEY_SPEND_CACHE_KEY_PREFIX,
)
from litellm.proxy.management_endpoints.common_utils import (
    _check_passthrough_routes_caller_permission,
    _is_user_org_admin_for_team,
    _is_user_team_admin,
    _set_object_metadata_field,
    _team_member_has_permission,
)
from litellm.proxy.management_endpoints.model_management_endpoints import (
    _add_model_to_db,
)
from litellm.proxy.management_helpers.object_permission_utils import (
    _set_object_permission,
    attach_object_permission_to_dict,
    handle_update_object_permission_common,
    validate_key_mcp_servers_against_team,
    validate_key_search_tools_against_team,
)
from litellm.proxy.management_helpers.team_member_permission_checks import (
    TeamMemberPermissionChecks,
)
from litellm.proxy.management_helpers.utils import management_endpoint_wrapper
from litellm.proxy.spend_tracking.spend_tracking_utils import _is_master_key
from litellm.proxy.ui_crud_endpoints.proxy_setting_endpoints import (
    get_ui_settings_cached,
)
from litellm.proxy.utils import (
    PrismaClient,
    ProxyLogging,
    _hash_token_if_needed,
    handle_exception_on_proxy,
    is_valid_api_key,
)
from litellm.repositories.budget_repository import BudgetRepository
from litellm.repositories.config_repository import ConfigRepository
from litellm.repositories.credentials_repository import CredentialsRepository
from litellm.repositories.model_repository import ModelRepository
from litellm.repositories.table_repositories import (
    DeletedVerificationTokenRepository,
    DeprecatedVerificationTokenRepository,
)
from litellm.repositories.team_repository import TeamRepository
from litellm.repositories.user_repository import UserRepository
from litellm.repositories.verification_token_repository import (
    VerificationTokenRepository,
)
from litellm.router import Router
from litellm.secret_managers.main import get_secret
from litellm.types.proxy.management_endpoints.key_management_endpoints import (
    BulkUpdateKeyRequest,
    BulkUpdateKeyResponse,
    BulkUpdateTeamKeysRequest,
    FailedKeyUpdate,
    SuccessfulKeyUpdate,
)
from litellm.types.router import Deployment
from litellm.types.utils import (
    BudgetConfig,
    PersonalUIKeyGenerationConfig,
    TeamUIKeyGenerationConfig,
)


async def _check_custom_key_allowed(custom_key_value: Optional[str]) -> None:
    """Raise 403 if custom API keys are disabled and a custom key was provided."""
    if custom_key_value is None:
        return

    ui_settings = await get_ui_settings_cached()
    if ui_settings.get("disable_custom_api_keys", False) is True:
        verbose_proxy_logger.warning(
            "Custom API key rejected: disable_custom_api_keys is enabled"
        )
        raise HTTPException(
            status_code=403,
            detail={
                "error": "Custom API key values are disabled by your administrator. Keys must be auto-generated."
            },
        )


def _is_team_key(data: Union[GenerateKeyRequest, LiteLLM_VerificationToken]):
    return data.team_id is not None


def _get_user_in_team(
    team_table: LiteLLM_TeamTableCachedObj, user_id: Optional[str]
) -> Optional[Member]:
    if user_id is None:
        return None
    for member in team_table.members_with_roles:
        if member.user_id is not None and member.user_id == user_id:
            return member

    return None


def _calculate_key_rotation_time(rotation_interval: str) -> datetime:
    """
    Helper function to calculate the next rotation time for a key based on the rotation interval.

    Args:
        rotation_interval: String representing the rotation interval (e.g., '30d', '90d', '1h')

    Returns:
        datetime: The calculated next rotation time in UTC
    """
    now = datetime.now(timezone.utc)
    interval_seconds = duration_in_seconds(rotation_interval)
    return now + timedelta(seconds=interval_seconds)


def _set_key_rotation_fields(
    data: dict,
    auto_rotate: bool,
    rotation_interval: Optional[str],
    existing_key_alias: Optional[str] = None,
) -> None:
    """
    Helper function to set rotation fields in key data if auto_rotate is enabled.

    Args:
        data: Dictionary to update with rotation fields
        auto_rotate: Whether auto rotation is enabled
        rotation_interval: The rotation interval string (required if auto_rotate is True)
        existing_key_alias: The existing key alias from the database (if any)
    """
    if auto_rotate and rotation_interval:
        if (
            litellm._key_management_settings is not None
            and litellm._key_management_settings.store_virtual_keys is True
            and data.get("key_alias") is None
            and existing_key_alias is None
        ):
            raise ProxyException(
                message="key_alias is required when auto_rotate=True and store_virtual_keys is enabled. This ensures stable secret naming during rotation.",
                type=ProxyErrorTypes.bad_request_error,
                param="key_alias",
                code=400,
            )
        data.update(
            {
                "auto_rotate": auto_rotate,
                "rotation_interval": rotation_interval,
                "key_rotation_at": _calculate_key_rotation_time(rotation_interval),
            }
        )


def _is_allowed_to_make_key_request(
    user_api_key_dict: UserAPIKeyAuth,
    user_id: Optional[str],
    team_id: Optional[str],
) -> bool:
    """
    Assert user only creates/updates keys for themselves

    Relevant issue: https://github.com/BerriAI/litellm/issues/7336
    """
    ## BASE CASE - PROXY ADMIN
    if (
        user_api_key_dict.user_role is not None
        and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
    ):
        return True

    if user_id is not None:
        assert (
            user_id == user_api_key_dict.user_id
        ), "User can only create keys for themselves. Got user_id={}, Your ID={}".format(
            user_id, user_api_key_dict.user_id
        )

    if team_id is not None:
        if (
            user_api_key_dict.team_id is not None
            and user_api_key_dict.team_id == UI_TEAM_ID
        ):
            return True  # handle https://github.com/BerriAI/litellm/issues/7482

    return True


def _team_key_operation_team_member_check(
    assigned_user_id: Optional[str],
    team_table: LiteLLM_TeamTableCachedObj,
    user_api_key_dict: UserAPIKeyAuth,
    team_key_generation: TeamUIKeyGenerationConfig,
    route: KeyManagementRoutes,
):
    if assigned_user_id is not None:
        key_assigned_user_in_team = _get_user_in_team(
            team_table=team_table, user_id=assigned_user_id
        )

        if key_assigned_user_in_team is None:
            raise HTTPException(
                status_code=400,
                detail=f"User={assigned_user_id} not assigned to team={team_table.team_id}",
            )

    team_member_object = _get_user_in_team(
        team_table=team_table, user_id=user_api_key_dict.user_id
    )

    is_admin = (
        user_api_key_dict.user_role is not None
        and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
    )

    if is_admin:
        return True
    elif team_member_object is None:
        raise HTTPException(
            status_code=400,
            detail=f"User={user_api_key_dict.user_id} not assigned to team={team_table.team_id}",
        )
    elif (
        "allowed_team_member_roles" in team_key_generation
        and team_member_object.role
        not in team_key_generation["allowed_team_member_roles"]
    ):
        raise HTTPException(
            status_code=400,
            detail=f"Team member role {team_member_object.role} not in allowed_team_member_roles={team_key_generation['allowed_team_member_roles']}",
        )

    TeamMemberPermissionChecks.does_team_member_have_permissions_for_endpoint(
        team_member_object=team_member_object,
        team_table=team_table,
        route=route,
    )
    return True


def _key_generation_required_param_check(
    data: GenerateKeyRequest, required_params: Optional[List[str]]
):
    if required_params is None:
        return True

    data_dict = data.model_dump(exclude_unset=True)
    for param in required_params:
        if param not in data_dict:
            raise HTTPException(
                status_code=400,
                detail=f"Required param {param} not in data",
            )
    return True


def _team_key_generation_check(
    team_table: LiteLLM_TeamTableCachedObj,
    user_api_key_dict: UserAPIKeyAuth,
    data: GenerateKeyRequest,
    route: KeyManagementRoutes,
):
    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return True
    if (
        litellm.key_generation_settings is not None
        and "team_key_generation" in litellm.key_generation_settings
    ):
        _team_key_generation = litellm.key_generation_settings["team_key_generation"]
    else:
        _team_key_generation = TeamUIKeyGenerationConfig(
            allowed_team_member_roles=["admin", "user"],
        )

    _team_key_operation_team_member_check(
        assigned_user_id=data.user_id,
        team_table=team_table,
        user_api_key_dict=user_api_key_dict,
        team_key_generation=_team_key_generation,
        route=route,
    )
    _key_generation_required_param_check(
        data,
        _team_key_generation.get("required_params"),
    )

    # Field-level opt-in: non-admin members may only assign access groups when
    # the team has enabled KEY_ACCESS_GROUP_ASSIGNMENT.
    TeamMemberPermissionChecks.enforce_member_can_assign_access_groups(
        user_api_key_dict=user_api_key_dict,
        team_table=team_table,
        access_group_ids=data.access_group_ids,
    )

    return True


def _personal_key_membership_check(
    user_api_key_dict: UserAPIKeyAuth,
    personal_key_generation: Optional[PersonalUIKeyGenerationConfig],
):
    if (
        personal_key_generation is None
        or "allowed_user_roles" not in personal_key_generation
    ):
        return True

    if user_api_key_dict.user_role not in personal_key_generation["allowed_user_roles"]:
        raise HTTPException(
            status_code=400,
            detail=f"Personal key creation has been restricted by admin. Allowed roles={litellm.key_generation_settings['personal_key_generation']['allowed_user_roles']}. Your role={user_api_key_dict.user_role}",  # type: ignore
        )

    return True


def _personal_key_generation_check(
    user_api_key_dict: UserAPIKeyAuth, data: GenerateKeyRequest
):
    if (
        litellm.key_generation_settings is None
        or litellm.key_generation_settings.get("personal_key_generation") is None
    ):
        return True

    _personal_key_generation = litellm.key_generation_settings["personal_key_generation"]  # type: ignore

    _personal_key_membership_check(
        user_api_key_dict,
        personal_key_generation=_personal_key_generation,
    )

    _key_generation_required_param_check(
        data,
        _personal_key_generation.get("required_params"),
    )

    return True


def key_generation_check(
    team_table: Optional[LiteLLM_TeamTableCachedObj],
    user_api_key_dict: UserAPIKeyAuth,
    data: GenerateKeyRequest,
    route: KeyManagementRoutes,
) -> bool:
    """
    Check if admin has restricted key creation to certain roles for teams or individuals
    """

    ## check if key is for team or individual
    is_team_key = _is_team_key(data=data)
    _is_admin = (
        user_api_key_dict.user_role is not None
        and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
    )
    if is_team_key:
        if team_table is None and litellm.key_generation_settings is not None:
            raise HTTPException(
                status_code=400,
                detail=f"Unable to find team object in database. Team ID: {data.team_id}",
            )
        elif team_table is None:
            if _is_admin:
                return True  # admins can assign team_id without team table
            # Non-admin callers must have a valid team (LIT-1884)
            raise HTTPException(
                status_code=400,
                detail=f"Unable to find team object in database. Team ID: {data.team_id}",
            )
        return _team_key_generation_check(
            team_table=team_table,
            user_api_key_dict=user_api_key_dict,
            data=data,
            route=route,
        )
    else:
        return _personal_key_generation_check(
            user_api_key_dict=user_api_key_dict, data=data
        )


def common_key_access_checks(
    user_api_key_dict: UserAPIKeyAuth,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    llm_router: Optional[Router],
    premium_user: bool,
    user_id: Optional[str] = None,
) -> Literal[True]:
    """
    Check if user is allowed to make a key request, for this key
    """
    try:
        _is_allowed_to_make_key_request(
            user_api_key_dict=user_api_key_dict,
            user_id=user_id or data.user_id,
            team_id=data.team_id,
        )
    except AssertionError as e:
        raise HTTPException(
            status_code=403,
            detail=str(e),
        )
    except Exception as e:
        raise HTTPException(
            status_code=500,
            detail=str(e),
        )

    _check_model_access_group(
        models=data.models,
        llm_router=llm_router,
        premium_user=premium_user,
    )
    return True


router = APIRouter()


def handle_key_type(data: GenerateKeyRequest, data_json: dict) -> dict:
    """
    Handle the key type.
    """
    key_type = data.key_type
    data_json.pop("key_type", None)
    if key_type == LiteLLMKeyType.LLM_API:
        data_json["allowed_routes"] = ["llm_api_routes"]
    elif key_type == LiteLLMKeyType.MANAGEMENT:
        data_json["allowed_routes"] = ["management_routes"]
    elif key_type == LiteLLMKeyType.READ_ONLY:
        data_json["allowed_routes"] = ["info_routes"]
    return data_json


_NON_ADMIN_SAFE_ALLOWED_ROUTES_PRESETS = frozenset({"llm_api_routes", "info_routes"})


def _validate_caller_can_change_key_ownership(
    data: Optional[BaseModel],
    existing_key_row: Any,
    user_api_key_dict: UserAPIKeyAuth,
) -> None:
    """
    Non-admin callers must not rebind a key's ``user_id`` to a different
    user. The ``user_id`` on a verification token is what
    ``_return_user_api_key_auth_obj`` resolves against ``litellm_usertable``
    to derive the request's role; a non-admin rebinding their own key's
    ``user_id`` to a ``PROXY_ADMIN`` row promotes themselves.

    ``/key/update`` already enforces this inline; ``/key/regenerate`` did
    not. Sharing the check keeps both endpoints — and any future
    regenerate-style endpoint — consistent.
    """
    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return
    if data is None:
        return
    # Distinguish "user_id omitted" from "user_id explicitly set to None".
    # Both leave ``getattr(data, 'user_id', None)`` at None, but only the
    # explicit-null variant survives ``model_dump(exclude_unset=True)`` in
    # ``prepare_key_update_data`` and writes NULL to the token row —
    # detaching the key from its user and bypassing the user-row
    # role check on subsequent requests.
    fields_set = getattr(data, "model_fields_set", None) or set()
    if "user_id" not in fields_set:
        return
    incoming_user_id = getattr(data, "user_id", None)
    if incoming_user_id is None or incoming_user_id == "":
        raise HTTPException(
            status_code=403,
            detail="Non-admin users cannot remove the user_id from a key.",
        )
    existing_user_id = getattr(existing_key_row, "user_id", None)
    if incoming_user_id != existing_user_id:
        raise HTTPException(
            status_code=403,
            detail=(
                f"Non-admin caller is not allowed to rebind the key from "
                f"user={existing_user_id} to user={incoming_user_id}"
            ),
        )


def _check_allowed_routes_caller_permission(
    allowed_routes: Optional[list],
    user_api_key_dict: UserAPIKeyAuth,
    *,
    allow_safe_presets: bool = False,
) -> None:
    """
    Only proxy admins may set `allowed_routes` on a key.

    `allowed_routes` overrides the standard role-based route gate in
    RouteChecks.non_proxy_admin_allowed_routes_check, so the field is
    restricted to admins. Non-admins must instead use `key_type` to pick a
    preset bucket — that path goes through `handle_key_type` and re-enters
    this function with `allow_safe_presets=True`, which lets the derived
    `llm_api_routes` / `info_routes` values through. Raw-body call sites
    leave `allow_safe_presets=False` so non-admins can't write those values
    directly.
    """
    # Empty list is the default on GenerateKeyRequest — treat as "not set".
    if not allowed_routes:
        return
    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return
    if allow_safe_presets and all(
        r in _NON_ADMIN_SAFE_ALLOWED_ROUTES_PRESETS for r in allowed_routes
    ):
        return
    raise HTTPException(
        status_code=403,
        detail={
            "error": (
                "Only proxy admins can set `allowed_routes` on a key. "
                "Use `key_type` to pick a preset route bucket instead."
            )
        },
    )


async def validate_team_id_used_in_service_account_request(
    team_id: Optional[str],
    prisma_client: Optional[PrismaClient],
):
    """
    Validate team_id is used in the request body for generating a service account key
    """
    if team_id is None:
        raise HTTPException(
            status_code=400,
            detail="team_id is required for service account keys. Please specify `team_id` in the request body.",
        )

    if prisma_client is None:
        raise HTTPException(
            status_code=400,
            detail="prisma_client is required for service account keys. Please specify `prisma_client` in the request body.",
        )

    # check if team_id exists in the database
    team = await TeamRepository(prisma_client).table.find_unique(
        where={"team_id": team_id},
    )
    if team is None:
        raise HTTPException(
            status_code=400,
            detail="team_id does not exist in the database. Please specify a valid `team_id` in the request body.",
        )
    return True


_BUDGET_NUMERIC_KEYS = frozenset(
    ["max_budget", "soft_budget", "max_parallel_requests", "tpm_limit", "rpm_limit"]
)


def _enforce_upperbound_key_params(
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    fill_defaults: bool = True,
) -> None:
    """
    Enforce upperbound limits on key parameters.

    For key generation (fill_defaults=True): fills None values with upperbound defaults.
    For key update (fill_defaults=False): only validates explicitly provided values.
    """
    # Always reject NaN / Inf regardless of whether an upperbound config is set
    # (GHSA-2rv4-xv66-fpjg): float('nan') passes every `< 0` check because
    # nan < 0 is False, and spend >= nan is always False, permanently disabling
    # budget enforcement for any key that carries it.
    for elem in data:
        key, value = elem
        if key in _BUDGET_NUMERIC_KEYS and value is not None:
            if not math.isfinite(value):
                raise HTTPException(
                    status_code=400,
                    detail={
                        "error": f"{key} must be a finite number. Received: {value}"
                    },
                )

    if litellm.upperbound_key_generate_params is None:
        return

    for elem in data:
        key, value = elem
        upperbound_value = getattr(litellm.upperbound_key_generate_params, key, None)
        if upperbound_value is not None:
            if value is None:
                if fill_defaults:
                    setattr(data, key, upperbound_value)
            else:
                if key in [
                    "max_budget",
                    "max_parallel_requests",
                    "tpm_limit",
                    "rpm_limit",
                ]:
                    if value > upperbound_value:
                        raise HTTPException(
                            status_code=400,
                            detail={
                                "error": f"{key} is over max limit set in config - user_value={value}; max_value={upperbound_value}"
                            },
                        )
                elif key in ["budget_duration", "duration"]:
                    upperbound_duration = duration_in_seconds(duration=upperbound_value)
                    if value == "-1":
                        user_duration = float("inf")
                    else:
                        user_duration = duration_in_seconds(duration=value)
                    if user_duration > upperbound_duration:
                        raise HTTPException(
                            status_code=400,
                            detail={
                                "error": f"{key} is over max limit set in config - user_value={value}; max_value={upperbound_value}"
                            },
                        )


async def _common_key_generation_helper(
    data: GenerateKeyRequest,
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str],
    team_table: Optional[LiteLLM_TeamTableCachedObj],
) -> GenerateKeyResponse:
    from litellm.proxy.proxy_server import (
        litellm_proxy_admin_name,
        llm_router,
        premium_user,
        prisma_client,
    )

    common_key_access_checks(
        user_api_key_dict=user_api_key_dict,
        data=data,
        llm_router=llm_router,
        premium_user=premium_user,
    )

    if (
        data.metadata is not None
        and data.metadata.get("service_account_id") is not None
        and data.team_id is None
    ):
        await validate_team_id_used_in_service_account_request(
            team_id=data.team_id,
            prisma_client=prisma_client,
        )

    # Capture caller-supplied max_budget and team_id before any defaults or
    # upperbound params can fill them, so the ceiling check and its team-key
    # exemption key off what the caller explicitly requested, not a value that
    # default_key_generate_params injected.
    _requested_max_budget = data.max_budget
    _requested_team_id = data.team_id

    # check if user set default key/generate params on config.yaml
    if litellm.default_key_generate_params is not None:
        for elem in data:
            key, value = elem
            if value is None and key in [
                "max_budget",
                "user_id",
                "team_id",
                "max_parallel_requests",
                "tpm_limit",
                "rpm_limit",
                "budget_duration",
                "duration",
            ]:
                setattr(data, key, litellm.default_key_generate_params.get(key, None))
            elif key == "models" and value == []:
                setattr(data, key, litellm.default_key_generate_params.get(key, []))
            elif key == "metadata" and value == {}:
                setattr(data, key, litellm.default_key_generate_params.get(key, {}))

    # check if user set upperbound key/generate params on config.yaml
    _enforce_upperbound_key_params(data, fill_defaults=True)

    # Delegated-authority ceiling (GHSA-q775-qw9r-2r4g): a non-admin caller
    # with an explicit budget cannot grant a key a higher budget than their own.
    # Callers with max_budget=None (unlimited) can delegate any budget.
    # A UI/CLI session token's max_budget is a per-session chat spend cap
    # (max_ui_session_budget), not a delegation authority, so it is exempt only
    # when creating a team key - that key's spend is bounded by the team budget
    # at request time. Personal keys keep the ceiling; nothing else bounds them.
    is_ui_session_team_key = (
        user_api_key_dict.team_id == UI_SESSION_TOKEN_TEAM_ID
        and _requested_team_id is not None
    )
    if (
        user_api_key_dict.user_role != LitellmUserRoles.PROXY_ADMIN.value
        and not is_ui_session_team_key
        and _requested_max_budget is not None
        and user_api_key_dict.max_budget is not None
        and _requested_max_budget > user_api_key_dict.max_budget
    ):
        raise HTTPException(
            status_code=400,
            detail={
                "error": (
                    f"max_budget ({_requested_max_budget}) cannot exceed the caller's "
                    f"own max_budget ({user_api_key_dict.max_budget})."
                )
            },
        )

    # APPLY ENTERPRISE KEY MANAGEMENT PARAMS
    try:
        from litellm_enterprise.proxy.management_endpoints.key_management_endpoints import (
            apply_enterprise_key_management_params,
        )

        data = apply_enterprise_key_management_params(data, team_table)
    except Exception as e:
        verbose_proxy_logger.debug(
            "litellm.proxy.proxy_server.generate_key_fn(): Enterprise key management params not applied - {}".format(
                str(e)
            )
        )

    # TODO: @ishaan-jaff: Migrate all budget tracking to use LiteLLM_BudgetTable
    _budget_id = data.budget_id
    if prisma_client is not None and data.soft_budget is not None:
        # create the Budget Row for the LiteLLM Verification Token
        budget_row = LiteLLM_BudgetTable(
            soft_budget=data.soft_budget,
            model_max_budget=data.model_max_budget or {},
        )
        new_budget = prisma_client.jsonify_object(budget_row.json(exclude_none=True))

        _budget = await BudgetRepository(prisma_client).table.create(
            data={
                **new_budget,  # type: ignore
                "created_by": user_api_key_dict.user_id or litellm_proxy_admin_name,
                "updated_by": user_api_key_dict.user_id or litellm_proxy_admin_name,
            }
        )
        _budget_id = getattr(_budget, "budget_id", None)

    # ADD METADATA FIELDS
    # Set Management Endpoint Metadata Fields
    for field in LiteLLM_ManagementEndpoint_MetadataFields_Premium:
        if getattr(data, field, None) is not None:
            _set_object_metadata_field(
                object_data=data,
                field_name=field,
                value=getattr(data, field),
            )
            delattr(data, field)

    for field in LiteLLM_ManagementEndpoint_MetadataFields:
        if getattr(data, field, None) is not None:
            _set_object_metadata_field(
                object_data=data,
                field_name=field,
                value=getattr(data, field),
            )
            delattr(data, field)

    data_json = data.model_dump(exclude_unset=True, exclude_none=True)  # type: ignore

    data_json = handle_key_type(data, data_json)

    # Re-check allowed_routes after handle_key_type, since key_type can derive
    # an elevated bucket (e.g. ["management_routes"]) that wasn't present in
    # the original request body. The safe presets produced by handle_key_type
    # for non-elevated buckets are accepted here; the raw-body pre-checks at
    # the entry of each handler keep their default strictness.
    _check_allowed_routes_caller_permission(
        allowed_routes=data_json.get("allowed_routes"),
        user_api_key_dict=user_api_key_dict,
        allow_safe_presets=True,
    )

    # if we get max_budget passed to /key/generate, then use it as key_max_budget. Since generate_key_helper_fn is used to make new users
    if "max_budget" in data_json:
        data_json["key_max_budget"] = data_json.pop("max_budget", None)
    if _budget_id is not None:
        data_json["budget_id"] = _budget_id

    # Only set budget_duration on key when explicitly provided. Keys with budget_id
    # but no explicit budget_duration follow their linked budget tier's schedule;
    # reset_budget_for_keys_linked_to_budgets() resets them when the tier resets.
    # This avoids duplicating budget_duration on keys so tier updates apply automatically.
    if "budget_duration" in data_json:
        data_json["key_budget_duration"] = data_json.pop("budget_duration", None)

    if user_api_key_dict.user_id is not None:
        data_json["created_by"] = user_api_key_dict.user_id
        data_json["updated_by"] = user_api_key_dict.user_id

    # Set tags on the new key
    if "tags" in data_json:
        from litellm.proxy.proxy_server import premium_user

        if premium_user is not True and data_json["tags"] is not None:
            raise ValueError(
                f"Only premium users can add tags to keys. {CommonProxyErrors.not_premium_user.value}"
            )

        _metadata = data_json.get("metadata")
        if not _metadata:
            data_json["metadata"] = {"tags": data_json["tags"]}
        else:
            data_json["metadata"]["tags"] = data_json["tags"]

        data_json.pop("tags")

    # Validate MCP servers in object_permission are within team scope
    normalized_object_permission = await validate_key_mcp_servers_against_team(
        object_permission=data_json.get("object_permission"),
        team_obj=team_table,
        prisma_client=prisma_client,
    )
    if normalized_object_permission is not None:
        data_json["object_permission"] = normalized_object_permission
    await validate_key_search_tools_against_team(
        object_permission=data_json.get("object_permission"),
        team_obj=team_table,
    )

    data_json = await _set_object_permission(
        data_json=data_json,
        prisma_client=prisma_client,
    )

    _validate_key_alias_format(key_alias=data_json.get("key_alias", None))

    await _enforce_unique_key_alias(
        key_alias=data_json.get("key_alias", None),
        prisma_client=prisma_client,
    )

    # Reject custom key values if disabled by admin
    await _check_custom_key_allowed(data.key)

    # Validate user-provided key format
    if data.key is not None and not data.key.startswith("sk-"):
        _masked = (
            "{}****{}".format(data.key[:4], data.key[-4:])
            if len(data.key) > 8
            else "****"
        )
        raise HTTPException(
            status_code=400,
            detail={
                "error": f"Invalid key format. LiteLLM Virtual Key must start with 'sk-'. Received: {_masked}"
            },
        )

    # check org key limits - done here to handle inheriting org id from team
    if data.organization_id is not None:
        from litellm.proxy.proxy_server import prisma_client, user_api_key_cache

        if prisma_client:
            # Mirror the membership rule applied to /key/update: when the
            # caller specifies an organization_id, require that they are a
            # member of (or proxy admin over) the target organization.
            _is_proxy_admin = (
                user_api_key_dict.user_role is not None
                and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
            )
            _org_inherited_from_team = (
                team_table is not None
                and team_table.organization_id is not None
                and data.organization_id == team_table.organization_id
            )
            if not _is_proxy_admin and not _org_inherited_from_team:
                await _validate_caller_can_assign_key_org(
                    user_api_key_dict=user_api_key_dict,
                    organization_id=data.organization_id,
                    prisma_client=prisma_client,
                )

            org_table = await get_org_object(
                org_id=data.organization_id,
                user_api_key_cache=user_api_key_cache,
                prisma_client=prisma_client,
            )
            if org_table is None:
                raise HTTPException(
                    status_code=400,
                    detail=f"Organization not found for organization_id={data.organization_id}",
                )
            await _check_org_key_limits(
                org_table=org_table,
                data=data,
                prisma_client=prisma_client,
            )

    response = await generate_key_helper_fn(
        request_type="key", **data_json, table_name="key"
    )

    response["soft_budget"] = (
        data.soft_budget
    )  # include the user-input soft budget in the response

    response = GenerateKeyResponse(**response)

    response.token = (
        response.token_id
    )  # remap token to use the hash, and leave the key in the `key` field [TODO]: clean up generate_key_helper_fn to do this

    asyncio.create_task(
        KeyManagementEventHooks.async_key_generated_hook(
            data=data,
            response=response,
            user_api_key_dict=user_api_key_dict,
            litellm_changed_by=litellm_changed_by,
        )
    )

    return response


def _check_key_model_specific_limits(
    keys: List[LiteLLM_VerificationToken],
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    entity_rpm_limit: Optional[int],
    entity_tpm_limit: Optional[int],
    entity_model_rpm_limit_dict: Dict[str, int],
    entity_model_tpm_limit_dict: Dict[str, int],
    entity_type: str,  # "team" or "organization"
) -> None:
    """
    Generic function to check if a key is allocating model specific limits.
    Raises an error if we're overallocating.
    """
    model_rpm_limit = getattr(data, "model_rpm_limit", None) or (
        data.metadata.get("model_rpm_limit", None) if data.metadata else None
    )
    model_tpm_limit = getattr(data, "model_tpm_limit", None) or (
        data.metadata.get("model_tpm_limit", None) if data.metadata else None
    )
    if model_rpm_limit is None and model_tpm_limit is None:
        return

    # get total model specific tpm/rpm limit
    model_specific_rpm_limit: Dict[str, int] = {}
    model_specific_tpm_limit: Dict[str, int] = {}

    for key in keys:
        if key.metadata.get("model_rpm_limit", None) is not None:
            for model, rpm_limit in key.metadata.get("model_rpm_limit", {}).items():
                model_specific_rpm_limit[model] = (
                    model_specific_rpm_limit.get(model, 0) + rpm_limit
                )
        if key.metadata.get("model_tpm_limit", None) is not None:
            for model, tpm_limit in key.metadata.get("model_tpm_limit", {}).items():
                model_specific_tpm_limit[model] = (
                    model_specific_tpm_limit.get(model, 0) + tpm_limit
                )

    if model_rpm_limit is not None:
        for model, rpm_limit in model_rpm_limit.items():
            if (
                entity_rpm_limit is not None
                and model_specific_rpm_limit.get(model, 0) + rpm_limit
                > entity_rpm_limit
            ):
                raise HTTPException(
                    status_code=400,
                    detail=f"Allocated RPM limit={model_specific_rpm_limit.get(model, 0)} + Key RPM limit={rpm_limit} is greater than {entity_type} RPM limit={entity_rpm_limit}",
                )
            elif entity_model_rpm_limit_dict:
                entity_model_specific_rpm_limit = entity_model_rpm_limit_dict.get(model)
                if (
                    entity_model_specific_rpm_limit
                    and model_specific_rpm_limit.get(model, 0) + rpm_limit
                    > entity_model_specific_rpm_limit
                ):
                    raise HTTPException(
                        status_code=400,
                        detail=f"Allocated RPM limit={model_specific_rpm_limit.get(model, 0)} + Key RPM limit={rpm_limit} is greater than {entity_type} RPM limit={entity_model_specific_rpm_limit}",
                    )

    if model_tpm_limit is not None:
        for model, tpm_limit in model_tpm_limit.items():
            if (
                entity_tpm_limit is not None
                and model_specific_tpm_limit.get(model, 0) + tpm_limit
                > entity_tpm_limit
            ):
                raise HTTPException(
                    status_code=400,
                    detail=f"Allocated TPM limit={model_specific_tpm_limit.get(model, 0)} + Key TPM limit={tpm_limit} is greater than {entity_type} TPM limit={entity_tpm_limit}",
                )
            elif entity_model_tpm_limit_dict:
                entity_model_specific_tpm_limit = entity_model_tpm_limit_dict.get(model)
                if (
                    entity_model_specific_tpm_limit
                    and model_specific_tpm_limit.get(model, 0) + tpm_limit
                    > entity_model_specific_tpm_limit
                ):
                    raise HTTPException(
                        status_code=400,
                        detail=f"Allocated TPM limit={model_specific_tpm_limit.get(model, 0)} + Key TPM limit={tpm_limit} is greater than {entity_type} TPM limit={entity_model_specific_tpm_limit}",
                    )


def _check_key_rpm_tpm_limits(
    keys: List[LiteLLM_VerificationToken],
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    entity_rpm_limit: Optional[int],
    entity_tpm_limit: Optional[int],
    entity_type: str,  # "team" or "organization"
) -> None:
    """
    Generic function to check if a key is allocating rpm/tpm limits.
    Raises an error if we're overallocating.
    """
    if keys is not None and len(keys) > 0:
        allocated_tpm = sum(key.tpm_limit for key in keys if key.tpm_limit is not None)
        allocated_rpm = sum(key.rpm_limit for key in keys if key.rpm_limit is not None)
    else:
        allocated_tpm = 0
        allocated_rpm = 0

    if (
        data.tpm_limit is not None
        and entity_tpm_limit is not None
        and data.tpm_limit + allocated_tpm > entity_tpm_limit
    ):
        raise HTTPException(
            status_code=400,
            detail=f"Allocated TPM limit={allocated_tpm} + Key TPM limit={data.tpm_limit} is greater than {entity_type} TPM limit={entity_tpm_limit}",
        )
    if (
        data.rpm_limit is not None
        and entity_rpm_limit is not None
        and data.rpm_limit + allocated_rpm > entity_rpm_limit
    ):
        raise HTTPException(
            status_code=400,
            detail=f"Allocated RPM limit={allocated_rpm} + Key RPM limit={data.rpm_limit} is greater than {entity_type} RPM limit={entity_rpm_limit}",
        )


def check_team_key_model_specific_limits(
    keys: List[LiteLLM_VerificationToken],
    team_table: LiteLLM_TeamTableCachedObj,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
) -> None:
    """
    Check if the team key is allocating model specific limits. If so, raise an error if we're overallocating.
    """
    entity_model_rpm_limit_dict = {}
    entity_model_tpm_limit_dict = {}
    if team_table.metadata:
        entity_model_rpm_limit_dict = team_table.metadata.get("model_rpm_limit", {})
        entity_model_tpm_limit_dict = team_table.metadata.get("model_tpm_limit", {})

    _check_key_model_specific_limits(
        keys=keys,
        data=data,
        entity_rpm_limit=team_table.rpm_limit,
        entity_tpm_limit=team_table.tpm_limit,
        entity_model_rpm_limit_dict=entity_model_rpm_limit_dict,
        entity_model_tpm_limit_dict=entity_model_tpm_limit_dict,
        entity_type="team",
    )


def check_team_key_rpm_tpm_limits(
    keys: List[LiteLLM_VerificationToken],
    team_table: LiteLLM_TeamTableCachedObj,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
) -> None:
    """
    Check if the team key is allocating rpm/tpm limits. If so, raise an error if we're overallocating.
    """
    _check_key_rpm_tpm_limits(
        keys=keys,
        data=data,
        entity_rpm_limit=team_table.rpm_limit,
        entity_tpm_limit=team_table.tpm_limit,
        entity_type="team",
    )


async def _check_team_key_limits(
    team_table: LiteLLM_TeamTableCachedObj,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    prisma_client: PrismaClient,
) -> None:
    """
    Check if the team key is allocating guaranteed throughput limits. If so, raise an error if we're overallocating.

    Only runs check if tpm_limit_type or rpm_limit_type is "guaranteed_throughput"
    """
    if (
        data.tpm_limit_type != "guaranteed_throughput"
        and data.rpm_limit_type != "guaranteed_throughput"
    ):
        return
    # get all team keys
    # calculate allocated tpm/rpm limit
    # check if specified tpm/rpm limit is greater than allocated tpm/rpm limit

    keys = await VerificationTokenRepository(prisma_client).table.find_many(
        where={"team_id": team_table.team_id},
    )
    # Exclude the key being updated to avoid double-counting its limits.
    # data.key may be a raw key (sk-...) or a pre-hashed token_id.
    if isinstance(data, UpdateKeyRequest):
        hashed_key = _hash_token_if_needed(data.key)
        keys = [key for key in keys if key.token != hashed_key]
    check_team_key_model_specific_limits(
        keys=keys,
        team_table=team_table,
        data=data,
    )
    check_team_key_rpm_tpm_limits(
        keys=keys,
        team_table=team_table,
        data=data,
    )


async def _check_project_key_limits(
    project_id: str,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    prisma_client: PrismaClient,
    user_api_key_cache: UserApiKeyCache,
) -> None:
    """
    Validate that key's models and budget respect its project's limits.

    - Key models must be a subset of project models
    - Key max_budget must be <= project max_budget
    """
    project_obj = await get_project_object(
        project_id=project_id,
        prisma_client=prisma_client,
        user_api_key_cache=user_api_key_cache,
    )

    if project_obj is None:
        raise HTTPException(
            status_code=404,
            detail={"error": f"Project not found, project_id={project_id}"},
        )

    # Validate key models are a subset of project models
    if data.models and len(project_obj.models) > 0:
        for m in data.models:
            if m not in project_obj.models:
                raise HTTPException(
                    status_code=400,
                    detail={
                        "error": f"Model '{m}' not in project's allowed models. Project allowed models={project_obj.models}. Project: {project_id}"
                    },
                )

    # Validate key max_budget <= project max_budget
    project_max_budget = None
    if project_obj.litellm_budget_table is not None:
        project_max_budget = getattr(
            project_obj.litellm_budget_table, "max_budget", None
        )

    if (
        data.max_budget is not None
        and project_max_budget is not None
        and data.max_budget > project_max_budget
    ):
        raise HTTPException(
            status_code=400,
            detail={
                "error": f"Key max_budget ({data.max_budget}) exceeds project's max_budget ({project_max_budget}). Project: {project_id}"
            },
        )


def check_org_key_model_specific_limits(
    keys: List[LiteLLM_VerificationToken],
    org_table: LiteLLM_OrganizationTable,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
) -> None:
    """
    Check if the organization key is allocating model specific limits. If so, raise an error if we're overallocating.
    """
    # Get org limits from budget table if available
    entity_rpm_limit = None
    entity_tpm_limit = None
    entity_model_rpm_limit_dict = {}
    entity_model_tpm_limit_dict = {}

    if org_table.litellm_budget_table is not None:
        entity_rpm_limit = org_table.litellm_budget_table.rpm_limit
        entity_tpm_limit = org_table.litellm_budget_table.tpm_limit

    if org_table.metadata:
        entity_model_rpm_limit_dict = org_table.metadata.get("model_rpm_limit", {})
        entity_model_tpm_limit_dict = org_table.metadata.get("model_tpm_limit", {})

    _check_key_model_specific_limits(
        keys=keys,
        data=data,
        entity_rpm_limit=entity_rpm_limit,
        entity_tpm_limit=entity_tpm_limit,
        entity_model_rpm_limit_dict=entity_model_rpm_limit_dict,
        entity_model_tpm_limit_dict=entity_model_tpm_limit_dict,
        entity_type="organization",
    )


def check_org_key_rpm_tpm_limits(
    keys: List[LiteLLM_VerificationToken],
    org_table: LiteLLM_OrganizationTable,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
) -> None:
    """
    Check if the organization key is allocating rpm/tpm limits. If so, raise an error if we're overallocating.
    """
    # Get org limits from budget table if available
    entity_rpm_limit = None
    entity_tpm_limit = None

    if org_table.litellm_budget_table is not None:
        entity_rpm_limit = org_table.litellm_budget_table.rpm_limit
        entity_tpm_limit = org_table.litellm_budget_table.tpm_limit

    _check_key_rpm_tpm_limits(
        keys=keys,
        data=data,
        entity_rpm_limit=entity_rpm_limit,
        entity_tpm_limit=entity_tpm_limit,
        entity_type="organization",
    )


async def _validate_caller_can_assign_key_org(
    user_api_key_dict: UserAPIKeyAuth,
    organization_id: str,
    prisma_client: PrismaClient,
) -> None:
    """Reject ``/key/update`` requests that point a key at an organization
    the caller does not belong to.

    Mirrors the org-membership rule already enforced on ``/key/list`` in
    ``validate_key_list_check``. Proxy admins are checked at the call site.
    """
    if user_api_key_dict.user_id is None:
        raise HTTPException(
            status_code=status.HTTP_403_FORBIDDEN,
            detail="Cannot assign a key to an organization without a user_id on the caller's token",
        )

    user_row = await UserRepository(prisma_client).table.find_unique(
        where={"user_id": user_api_key_dict.user_id},
        include={"organization_memberships": True},
    )
    memberships = (
        getattr(user_row, "organization_memberships", None) if user_row else None
    )
    member_org_ids = {
        membership.organization_id
        for membership in (memberships or [])
        if membership.organization_id is not None
    }
    if organization_id not in member_org_ids:
        raise HTTPException(
            status_code=status.HTTP_403_FORBIDDEN,
            detail=f"Caller is not a member of organization_id={organization_id}",
        )


async def _check_org_key_limits(
    org_table: LiteLLM_OrganizationTable,
    data: Union[GenerateKeyRequest, UpdateKeyRequest],
    prisma_client: PrismaClient,
) -> None:
    """
    Check if the organization key is allocating guaranteed throughput limits. If so, raise an error if we're overallocating.

    Only runs check if tpm_limit_type or rpm_limit_type is "guaranteed_throughput"
    """

    rpm_limit_type = getattr(data, "rpm_limit_type", None) or (
        data.metadata.get("rpm_limit_type", None) if data.metadata else None
    )
    tpm_limit_type = getattr(data, "tpm_limit_type", None) or (
        data.metadata.get("tpm_limit_type", None) if data.metadata else None
    )

    if (
        tpm_limit_type != "guaranteed_throughput"
        and rpm_limit_type != "guaranteed_throughput"
    ):
        return
    # get all organization keys
    # calculate allocated tpm/rpm limit
    # check if specified tpm/rpm limit is greater than allocated tpm/rpm limit
    keys = await VerificationTokenRepository(prisma_client).table.find_many(
        where={"organization_id": org_table.organization_id},
    )
    # Exclude the key being updated to avoid double-counting its limits.
    # data.key may be a raw key (sk-...) or a pre-hashed token_id.
    if isinstance(data, UpdateKeyRequest):
        hashed_key = _hash_token_if_needed(data.key)
        keys = [key for key in keys if key.token != hashed_key]
    check_org_key_model_specific_limits(
        keys=keys,
        org_table=org_table,
        data=data,
    )
    check_org_key_rpm_tpm_limits(
        keys=keys,
        org_table=org_table,
        data=data,
    )


@router.post(
    "/key/generate",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
    response_model=GenerateKeyResponse,
)
@management_endpoint_wrapper
async def generate_key_fn(
    data: GenerateKeyRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Generate an API key based on the provided data.

    Docs: https://docs.litellm.ai/docs/proxy/virtual_keys

    Parameters:
    - duration: Optional[str] - Specify the length of time the token is valid for. You can set duration as seconds ("30s"), minutes ("30m"), hours ("30h"), days ("30d").
    - key_alias: Optional[str] - User defined key alias
    - key: Optional[str] - User defined key value. If not set, a 16-digit unique sk-key is created for you.
    - team_id: Optional[str] - The team id of the key
    - user_id: Optional[str] - The user id of the key
    - agent_id: Optional[str] - The agent id associated with the key.
    - organization_id: Optional[str] - The organization id of the key. If not set, and team_id is set, the organization id will be the same as the team id. If conflict, an error will be raised.
    - project_id: Optional[str] - The project id of the key. When set, models and max_budget are validated against the project's limits.
    - budget_id: Optional[str] - The budget id associated with the key. Created by calling `/budget/new`.
    - models: Optional[list] - Model_name's a user is allowed to call. (if empty, key is allowed to call all models)
    - aliases: Optional[dict] - Any alias mappings, on top of anything in the config.yaml model list. - https://docs.litellm.ai/docs/proxy/virtual_keys#managing-auth---upgradedowngrade-models
    - config: Optional[dict] - any key-specific configs, overrides config in config.yaml
    - spend: Optional[int] - Amount spent by key. Default is 0. Will be updated by proxy whenever key is used. https://docs.litellm.ai/docs/proxy/virtual_keys#managing-auth---tracking-spend
    - send_invite_email: Optional[bool] - Whether to send an invite email to the user_id, with the generate key
    - max_budget: Optional[float] - Specify max budget for a given key.
    - budget_duration: Optional[str] - Budget is reset at the end of specified duration. If not set, budget is never reset. You can set duration as seconds ("30s"), minutes ("30m"), hours ("30h"), days ("30d").
    - max_parallel_requests: Optional[int] - Rate limit a user based on the number of parallel requests. Raises 429 error, if user's parallel requests > x.
    - metadata: Optional[dict] - Metadata for key, store information for key. Example metadata = {"team": "core-infra", "app": "app2", "email": "ishaan@berri.ai" }
    - guardrails: Optional[List[str]] - List of active guardrails for the key
    - policies: Optional[List[str]] - List of policy names to apply to the key. Policies define guardrails, conditions, and inheritance rules.
    - disable_global_guardrails: Optional[bool] - Whether to disable global guardrails for the key.
    - permissions: Optional[dict] - key-specific permissions. Currently just used for turning off pii masking (if connected). Example - {"pii": false}
    - model_max_budget: Optional[Dict[str, BudgetConfig]] - Model-specific budgets {"gpt-4": {"budget_limit": 0.0005, "time_period": "30d"}}}. IF null or {} then no model specific budget.
    - model_rpm_limit: Optional[dict] - key-specific model rpm limit. Example - {"text-davinci-002": 1000, "gpt-3.5-turbo": 1000}. IF null or {} then no model specific rpm limit.
    - model_tpm_limit: Optional[dict] - key-specific model tpm limit. Example - {"text-davinci-002": 1000, "gpt-3.5-turbo": 1000}. IF null or {} then no model specific tpm limit.
    - mcp_rpm_limit: Optional[dict] - key-specific per-MCP-server rpm limit, keyed by MCP server name (alias if set, else the configured name). Example - {"github": 100, "slack": 200}. IF null or {} then no MCP-specific rpm limit.
    - tpm_limit_type: Optional[str] - Type of tpm limit. Options: "best_effort_throughput" (no error if we're overallocating tpm), "guaranteed_throughput" (raise an error if we're overallocating tpm), "dynamic" (dynamically exceed limit when no 429 errors). Defaults to "best_effort_throughput".
    - rpm_limit_type: Optional[str] - Type of rpm limit. Options: "best_effort_throughput" (no error if we're overallocating rpm), "guaranteed_throughput" (raise an error if we're overallocating rpm), "dynamic" (dynamically exceed limit when no 429 errors). Defaults to "best_effort_throughput".
    - allowed_cache_controls: Optional[list] - List of allowed cache control values. Example - ["no-cache", "no-store"]. See all values - https://docs.litellm.ai/docs/proxy/caching#turn-on--off-caching-per-request
    - blocked: Optional[bool] - Whether the key is blocked.
    - rpm_limit: Optional[int] - Specify rpm limit for a given key (Requests per minute)
    - tpm_limit: Optional[int] - Specify tpm limit for a given key (Tokens per minute)
    - soft_budget: Optional[float] - Specify soft budget for a given key. Will trigger a slack alert when this soft budget is reached.
    - tags: Optional[List[str]] - Tags for [tracking spend](https://litellm.vercel.app/docs/proxy/enterprise#tracking-spend-for-custom-tags) and/or doing [tag-based routing](https://litellm.vercel.app/docs/proxy/tag_routing).
    - prompts: Optional[List[str]] - List of prompts that the key is allowed to use.
    - enforced_params: Optional[List[str]] - List of enforced params for the key (Enterprise only). [Docs](https://docs.litellm.ai/docs/proxy/enterprise#enforce-required-params-for-llm-requests)
    - prompts: Optional[List[str]] - List of prompts that the key is allowed to use.
    - allowed_routes: Optional[list] - List of allowed routes for the key. Store the actual route or store a wildcard pattern for a set of routes. Example - ["/chat/completions", "/embeddings", "/keys/*"]
    - allowed_passthrough_routes: Optional[list] - List of allowed pass through endpoints for the key. Store the actual endpoint or store a wildcard pattern for a set of endpoints. Example - ["/my-custom-endpoint"]. Use this instead of allowed_routes, if you just want to specify which pass through endpoints the key can access, without specifying the routes. If allowed_routes is specified, allowed_pass_through_endpoints is ignored.
    - object_permission: Optional[LiteLLM_ObjectPermissionBase] - key-specific object permission. Example - {"vector_stores": ["vector_store_1", "vector_store_2"], "agents": ["agent_1", "agent_2"], "agent_access_groups": ["dev_group"]}. IF null or {} then no object permission.
    - key_type: Optional[str] - Type of key that determines default allowed routes. Options: "llm_api" (can call LLM API routes), "management" (can call management routes), "read_only" (can only call info/read routes), "default" (uses default allowed routes). Defaults to "default".
    - prompts: Optional[List[str]] - List of allowed prompts for the key. If specified, the key will only be able to use these specific prompts.
    - auto_rotate: Optional[bool] - Whether this key should be automatically rotated (regenerated)
    - rotation_interval: Optional[str] - How often to auto-rotate this key (e.g., '30s', '30m', '30h', '30d'). Required if auto_rotate=True.
    - allowed_vector_store_indexes: Optional[List[dict]] - List of allowed vector store indexes for the key. Example - [{"index_name": "my-index", "index_permissions": ["write", "read"]}]. If specified, the key will only be able to use these specific vector store indexes. Create index, using `/v1/indexes` endpoint.
    - router_settings: Optional[UpdateRouterConfig] - key-specific router settings. Example - {"model_group_retry_policy": {"max_retries": 5}}. IF null or {} then no router settings.
    - access_group_ids: Optional[List[str]] - List of access group IDs to associate with the key. Access groups define which models a key can access. Example - ["access_group_1", "access_group_2"].
    - budget_limits: Optional[list] - List of concurrent budget windows for the key. Each window specifies a budget_limit, time_period, and optional budget_duration. Example - [{"budget_limit": 10.0, "time_period": "1d"}, {"budget_limit": 50.0, "time_period": "7d"}].

    Examples:

    1. Allow users to turn on/off pii masking

    ```bash
    curl --location 'http://0.0.0.0:4000/key/generate' \
        --header 'Authorization: Bearer sk-1234' \
        --header 'Content-Type: application/json' \
        --data '{
            "permissions": {"allow_pii_controls": true}
    }'
    ```

    Returns:
    - key: (str) The generated api key
    - expires: (datetime) Datetime object for when key expires.
    - user_id: (str) Unique user id - used for tracking spend across multiple keys for same user id.
    """
    try:
        from litellm.proxy._types import CommonProxyErrors
        from litellm.proxy.proxy_server import (
            prisma_client,
            user_api_key_cache,
            user_custom_key_generate,
        )

        if prisma_client is None:
            raise HTTPException(
                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                detail={"error": CommonProxyErrors.db_not_connected_error.value},
            )

        verbose_proxy_logger.debug("entered /key/generate")

        await check_org_admin_can_generate_keys(user_api_key_dict=user_api_key_dict)

        # Validate budget values are not negative and are finite numbers
        # (GHSA-2rv4-xv66-fpjg): float('nan') passes `< 0` because nan < 0 is False.
        if data.max_budget is not None and (
            not math.isfinite(data.max_budget) or data.max_budget < 0
        ):
            raise HTTPException(
                status_code=400,
                detail={
                    "error": f"max_budget must be a non-negative finite number. Received: {data.max_budget}"
                },
            )
        if data.soft_budget is not None and (
            not math.isfinite(data.soft_budget) or data.soft_budget < 0
        ):
            raise HTTPException(
                status_code=400,
                detail={
                    "error": f"soft_budget must be a non-negative finite number. Received: {data.soft_budget}"
                },
            )

        if user_custom_key_generate is not None:
            if inspect.iscoroutinefunction(user_custom_key_generate):
                result = await user_custom_key_generate(data)  # type: ignore
            else:
                raise ValueError("user_custom_key_generate must be a coroutine")
            decision = result.get("decision", True)
            message = result.get("message", "Authentication Failed - Custom Auth Rule")
            if not decision:
                raise HTTPException(
                    status_code=status.HTTP_403_FORBIDDEN, detail=message
                )

        _check_allowed_routes_caller_permission(
            allowed_routes=data.allowed_routes,
            user_api_key_dict=user_api_key_dict,
        )
        _check_passthrough_routes_caller_permission(
            data=data,
            user_api_key_dict=user_api_key_dict,
        )

        # For non-admin internal users: auto-assign caller's user_id if not provided
        # This prevents creating unbound keys with no user association (LIT-1884)
        _is_proxy_admin = (
            user_api_key_dict.user_role is not None
            and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
        )
        if not _is_proxy_admin and data.user_id is None:
            data.user_id = user_api_key_dict.user_id
            verbose_proxy_logger.warning(
                "key/generate: auto-assigning user_id=%s for non-admin caller",
                user_api_key_dict.user_id,
            )

        team_table: Optional[LiteLLM_TeamTableCachedObj] = None
        if data.team_id is not None:
            try:
                team_table = await get_team_object(
                    team_id=data.team_id,
                    prisma_client=prisma_client,
                    user_api_key_cache=user_api_key_cache,
                    parent_otel_span=user_api_key_dict.parent_otel_span,
                    check_db_only=True,
                )
            except Exception as e:
                verbose_proxy_logger.debug(
                    f"Error getting team object in `/key/generate`: {e}"
                )
                # For non-admin callers, team must exist (LIT-1884)
                if not _is_proxy_admin:
                    raise HTTPException(
                        status_code=400,
                        detail=f"Team not found for team_id={data.team_id}. Non-admin users cannot create keys for non-existent teams.",
                    )

        key_generation_check(
            team_table=team_table,
            user_api_key_dict=user_api_key_dict,
            data=data,
            route=KeyManagementRoutes.KEY_GENERATE,
        )

        if team_table is not None:
            await _check_team_key_limits(
                team_table=team_table,
                data=data,
                prisma_client=prisma_client,
            )

        # Validate key against project limits if project_id is set
        if data.project_id is not None:
            await _check_project_key_limits(
                project_id=data.project_id,
                data=data,
                prisma_client=prisma_client,
                user_api_key_cache=user_api_key_cache,
            )

        return await _common_key_generation_helper(
            data=data,
            user_api_key_dict=user_api_key_dict,
            litellm_changed_by=litellm_changed_by,
            team_table=team_table,
        )

    except Exception as e:
        verbose_proxy_logger.exception(
            "litellm.proxy.proxy_server.generate_key_fn(): Exception occured - {}".format(
                str(e)
            )
        )
        raise handle_exception_on_proxy(e)


@router.post(
    "/key/service-account/generate",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
)
@management_endpoint_wrapper
async def generate_service_account_key_fn(
    data: GenerateKeyRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Generate a Service Account API key based on the provided data. This key does not belong to any user. It belongs to the team.

    Why use a service account key?
    - Prevent key from being deleted when user is deleted.
    - Apply team limits, not team member limits to key.

    Docs: https://docs.litellm.ai/docs/proxy/virtual_keys

    Parameters:
    - duration: Optional[str] - Specify the length of time the token is valid for. You can set duration as seconds ("30s"), minutes ("30m"), hours ("30h"), days ("30d").
    - key_alias: Optional[str] - User defined key alias
    - key: Optional[str] - User defined key value. If not set, a 16-digit unique sk-key is created for you.
    - team_id: Optional[str] - The team id of the key
    - user_id: Optional[str] - [NON-FUNCTIONAL] THIS WILL BE IGNORED. The user id of the key
    - budget_id: Optional[str] - The budget id associated with the key. Created by calling `/budget/new`.
    - models: Optional[list] - Model_name's a user is allowed to call. (if empty, key is allowed to call all models)
    - aliases: Optional[dict] - Any alias mappings, on top of anything in the config.yaml model list. - https://docs.litellm.ai/docs/proxy/virtual_keys#managing-auth---upgradedowngrade-models
    - config: Optional[dict] - any key-specific configs, overrides config in config.yaml
    - spend: Optional[int] - Amount spent by key. Default is 0. Will be updated by proxy whenever key is used. https://docs.litellm.ai/docs/proxy/virtual_keys#managing-auth---tracking-spend
    - send_invite_email: Optional[bool] - Whether to send an invite email to the user_id, with the generate key
    - max_budget: Optional[float] - Specify max budget for a given key.
    - budget_duration: Optional[str] - Budget is reset at the end of specified duration. If not set, budget is never reset. You can set duration as seconds ("30s"), minutes ("30m"), hours ("30h"), days ("30d").
    - max_parallel_requests: Optional[int] - Rate limit a user based on the number of parallel requests. Raises 429 error, if user's parallel requests > x.
    - metadata: Optional[dict] - Metadata for key, store information for key. Example metadata = {"team": "core-infra", "app": "app2", "email": "ishaan@berri.ai" }
    - guardrails: Optional[List[str]] - List of active guardrails for the key
    - permissions: Optional[dict] - key-specific permissions. Currently just used for turning off pii masking (if connected). Example - {"pii": false}
    - model_max_budget: Optional[Dict[str, BudgetConfig]] - Model-specific budgets {"gpt-4": {"budget_limit": 0.0005, "time_period": "30d"}}}. IF null or {} then no model specific budget.
    - model_rpm_limit: Optional[dict] - key-specific model rpm limit. Example - {"text-davinci-002": 1000, "gpt-3.5-turbo": 1000}. IF null or {} then no model specific rpm limit.
    - model_tpm_limit: Optional[dict] - key-specific model tpm limit. Example - {"text-davinci-002": 1000, "gpt-3.5-turbo": 1000}. IF null or {} then no model specific tpm limit.
    - mcp_rpm_limit: Optional[dict] - key-specific per-MCP-server rpm limit, keyed by MCP server name (alias if set, else the configured name). Example - {"github": 100, "slack": 200}. IF null or {} then no MCP-specific rpm limit.
    - tpm_limit_type: Optional[str] - TPM rate limit type - "best_effort_throughput", "guaranteed_throughput", or "dynamic"
    - rpm_limit_type: Optional[str] - RPM rate limit type - "best_effort_throughput", "guaranteed_throughput", or "dynamic"
    - allowed_cache_controls: Optional[list] - List of allowed cache control values. Example - ["no-cache", "no-store"]. See all values - https://docs.litellm.ai/docs/proxy/caching#turn-on--off-caching-per-request
    - blocked: Optional[bool] - Whether the key is blocked.
    - rpm_limit: Optional[int] - Specify rpm limit for a given key (Requests per minute)
    - tpm_limit: Optional[int] - Specify tpm limit for a given key (Tokens per minute)
    - soft_budget: Optional[float] - Specify soft budget for a given key. Will trigger a slack alert when this soft budget is reached.
    - tags: Optional[List[str]] - Tags for [tracking spend](https://litellm.vercel.app/docs/proxy/enterprise#tracking-spend-for-custom-tags) and/or doing [tag-based routing](https://litellm.vercel.app/docs/proxy/tag_routing).
    - enforced_params: Optional[List[str]] - List of enforced params for the key (Enterprise only). [Docs](https://docs.litellm.ai/docs/proxy/enterprise#enforce-required-params-for-llm-requests)
    - allowed_routes: Optional[list] - List of allowed routes for the key. Store the actual route or store a wildcard pattern for a set of routes. Example - ["/chat/completions", "/embeddings", "/keys/*"]
    - object_permission: Optional[LiteLLM_ObjectPermissionBase] - key-specific object permission. Example - {"vector_stores": ["vector_store_1", "vector_store_2"], "agents": ["agent_1", "agent_2"], "agent_access_groups": ["dev_group"]}. IF null or {} then no object permission.
    Examples:
    - allowed_vector_store_indexes: Optional[List[dict]] - List of allowed vector store indexes for the key. Example - [{"index_name": "my-index", "index_permissions": ["write", "read"]}]. If specified, the key will only be able to use these specific vector store indexes. Create index, using `/v1/indexes` endpoint.


    1. Allow users to turn on/off pii masking

    ```bash
    curl --location 'http://0.0.0.0:4000/key/generate' \
        --header 'Authorization: Bearer sk-1234' \
        --header 'Content-Type: application/json' \
        --data '{
            "permissions": {"allow_pii_controls": true}
    }'
    ```

    Returns:
    - key: (str) The generated api key
    - expires: (datetime) Datetime object for when key expires.
    - user_id: (str) Unique user id - used for tracking spend across multiple keys for same user id.

    """
    from litellm.proxy._types import CommonProxyErrors
    from litellm.proxy.proxy_server import (
        prisma_client,
        user_api_key_cache,
        user_custom_key_generate,
    )

    if prisma_client is None:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail={"error": CommonProxyErrors.db_not_connected_error.value},
        )

    await check_org_admin_can_generate_keys(user_api_key_dict=user_api_key_dict)

    _check_allowed_routes_caller_permission(
        allowed_routes=data.allowed_routes,
        user_api_key_dict=user_api_key_dict,
    )
    _check_passthrough_routes_caller_permission(
        data=data,
        user_api_key_dict=user_api_key_dict,
    )

    await validate_team_id_used_in_service_account_request(
        team_id=data.team_id,
        prisma_client=prisma_client,
    )

    verbose_proxy_logger.debug("entered /key/generate")

    if user_custom_key_generate is not None:
        if inspect.iscoroutinefunction(user_custom_key_generate):
            result = await user_custom_key_generate(data)  # type: ignore
        else:
            raise ValueError("user_custom_key_generate must be a coroutine")
        decision = result.get("decision", True)
        message = result.get("message", "Authentication Failed - Custom Auth Rule")
        if not decision:
            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail=message)
    team_table: Optional[LiteLLM_TeamTableCachedObj] = None
    if data.team_id is not None:
        try:
            team_table = await get_team_object(
                team_id=data.team_id,
                prisma_client=prisma_client,
                user_api_key_cache=user_api_key_cache,
                parent_otel_span=user_api_key_dict.parent_otel_span,
                check_db_only=True,
            )
        except Exception as e:
            verbose_proxy_logger.debug(
                f"Error getting team object in `/key/generate`: {e}"
            )
            team_table = None

    if team_table is not None:
        await _check_team_key_limits(
            team_table=team_table,
            data=data,
            prisma_client=prisma_client,
        )

    key_generation_check(
        team_table=team_table,
        user_api_key_dict=user_api_key_dict,
        data=data,
        route=KeyManagementRoutes.KEY_GENERATE_SERVICE_ACCOUNT,
    )

    data.user_id = None  # do not allow user_id to be set for service account keys

    return await _common_key_generation_helper(
        data=data,
        user_api_key_dict=user_api_key_dict,
        litellm_changed_by=litellm_changed_by,
        team_table=team_table,
    )


def prepare_metadata_fields(
    data: BaseModel, non_default_values: dict, existing_metadata: dict
) -> dict:
    """
    Check LiteLLM_ManagementEndpoint_MetadataFields (proxy/_types.py) for fields that are allowed to be updated
    """
    if "metadata" not in non_default_values:  # allow user to set metadata to none
        non_default_values["metadata"] = existing_metadata.copy()

    casted_metadata = cast(dict, non_default_values["metadata"])

    # Reserved metadata fields are immutable once set. Preserve the existing value
    # when omitted, reject any explicit attempt to change it (including null).
    for reserved_field in LiteLLM_Reserved_Metadata_Fields:
        existing_value = existing_metadata.get(reserved_field)
        if existing_value is None:
            continue
        if casted_metadata is None or (
            reserved_field in casted_metadata
            and casted_metadata[reserved_field] != existing_value
        ):
            raise HTTPException(
                status_code=400,
                detail=f"{reserved_field} is immutable once set and cannot be changed via update.",
            )
        casted_metadata[reserved_field] = existing_value

    data_json = data.model_dump(exclude_unset=True, exclude_none=True)

    try:
        for k, v in data_json.items():
            if k in LiteLLM_ManagementEndpoint_MetadataFields:
                if isinstance(v, datetime):
                    casted_metadata[k] = v.isoformat()
                else:
                    casted_metadata[k] = v
            if k in LiteLLM_ManagementEndpoint_MetadataFields_Premium:
                from litellm.proxy.utils import _premium_user_check

                if v:
                    _premium_user_check(k)
                casted_metadata[k] = v

    except Exception as e:
        verbose_proxy_logger.exception(
            "litellm.proxy.proxy_server.prepare_metadata_fields(): Exception occured - {}".format(
                str(e)
            )
        )

    non_default_values["metadata"] = encrypt_callback_vars(casted_metadata)
    return non_default_values


async def prepare_key_update_data(
    data: Union[UpdateKeyRequest, RegenerateKeyRequest],
    existing_key_row: LiteLLM_VerificationToken,
):
    data_json: dict = data.model_dump(exclude_unset=True)
    data_json.pop("key", None)
    data_json.pop("new_key", None)
    data_json.pop("grace_period", None)  # Request-only param, not a DB column
    if (
        data.metadata is not None
        and data.metadata.get("service_account_id") is not None
        and (data.team_id or existing_key_row.team_id) is None
    ):
        raise HTTPException(
            status_code=400,
            detail="team_id is required for service account keys. Please specify `team_id` in the request body.",
        )
    non_default_values = {}
    # ADD METADATA FIELDS
    # Set Management Endpoint Metadata Fields
    for field in LiteLLM_ManagementEndpoint_MetadataFields_Premium:
        if getattr(data, field, None) is not None:
            _set_object_metadata_field(
                object_data=data,
                field_name=field,
                value=getattr(data, field),
            )
    for k, v in data_json.items():
        if (
            k in LiteLLM_ManagementEndpoint_MetadataFields
            or k in LiteLLM_ManagementEndpoint_MetadataFields_Premium
        ):
            continue
        non_default_values[k] = v

    if "duration" in non_default_values:
        duration = non_default_values.pop("duration")
        if duration is None or duration == "-1":
            # Set expires to None to indicate the key never expires
            non_default_values["expires"] = None
        elif duration and (isinstance(duration, str)) and len(duration) > 0:
            duration_s = duration_in_seconds(duration=duration)
            expires = datetime.now(timezone.utc) + timedelta(seconds=duration_s)
            non_default_values["expires"] = expires

    if "budget_duration" in non_default_values:
        budget_duration = non_default_values.pop("budget_duration")
        if budget_duration is None:
            non_default_values["budget_duration"] = None
            non_default_values["budget_reset_at"] = None
        elif isinstance(budget_duration, str) and len(budget_duration) > 0:
            from litellm.proxy.common_utils.timezone_utils import get_budget_reset_time

            key_reset_at = get_budget_reset_time(budget_duration=budget_duration)
            non_default_values["budget_reset_at"] = key_reset_at
            non_default_values["budget_duration"] = budget_duration

    if "budget_limits" in non_default_values:
        raw_windows = non_default_values["budget_limits"]
        if raw_windows:
            from litellm.proxy.common_utils.timezone_utils import get_budget_reset_time

            initialized_windows = []
            for window in raw_windows:
                w = window if isinstance(window, dict) else window.model_dump()
                w["reset_at"] = get_budget_reset_time(
                    budget_duration=w["budget_duration"]
                ).isoformat()
                initialized_windows.append(w)
            non_default_values["budget_limits"] = json.dumps(initialized_windows)
        else:
            # [] / None clears the field; prisma-client-py has no DbNull
            # sentinel for Json? columns, so store the JSON literal null
            non_default_values["budget_limits"] = json.dumps(None)

    if "object_permission" in non_default_values:
        non_default_values = await _handle_update_object_permission(
            data_json=non_default_values,
            existing_key_row=existing_key_row,
        )

    _metadata = existing_key_row.metadata or {}

    # validate model_max_budget
    if "model_max_budget" in non_default_values:
        validate_model_max_budget(non_default_values["model_max_budget"])

    # Serialize router_settings to JSON if present
    if (
        "router_settings" in non_default_values
        and non_default_values["router_settings"] is not None
    ):
        non_default_values["router_settings"] = safe_dumps(
            non_default_values["router_settings"]
        )

    non_default_values = prepare_metadata_fields(
        data=data, non_default_values=non_default_values, existing_metadata=_metadata
    )

    return non_default_values


async def _handle_update_object_permission(
    data_json: dict,
    existing_key_row: LiteLLM_VerificationToken,
) -> dict:
    """
    Handle the update of object permission.
    """
    from litellm.proxy.proxy_server import prisma_client

    # Use the common helper to handle the object permission update
    object_permission_id = await handle_update_object_permission_common(
        data_json=data_json,
        existing_object_permission_id=existing_key_row.object_permission_id,
        prisma_client=prisma_client,
    )

    # Add the object_permission_id to data_json if one was created/updated
    if object_permission_id is not None:
        data_json["object_permission_id"] = object_permission_id
        verbose_proxy_logger.debug(
            f"updated object_permission_id: {object_permission_id}"
        )

    return data_json


def is_different_team(
    data: UpdateKeyRequest, existing_key_row: LiteLLM_VerificationToken
) -> bool:
    if data.team_id is None:
        return False
    if existing_key_row.team_id is None:
        return True
    return data.team_id != existing_key_row.team_id


def _validate_max_budget(max_budget: Optional[float]) -> None:
    """
    Validate that max_budget is not negative.

    Args:
        max_budget: The max_budget value to validate

    Raises:
        HTTPException: If max_budget is negative
    """
    if max_budget is not None and (not math.isfinite(max_budget) or max_budget < 0):
        raise HTTPException(
            status_code=400,
            detail={
                "error": f"max_budget must be a non-negative finite number. Received: {max_budget}"
            },
        )


async def _get_and_validate_existing_key(
    token: str, prisma_client: Optional[PrismaClient]
) -> LiteLLM_VerificationToken:
    """
    Get existing key from database and validate it exists.

    Args:
        token: The key token to look up
        prisma_client: Prisma client instance

    Returns:
        LiteLLM_VerificationToken: The existing key row

    Raises:
        ProxyException: 404 if key is not found
    """
    if prisma_client is None:
        raise HTTPException(
            status_code=500,
            detail={"error": "Database not connected"},
        )

    hashed_token = _hash_token_if_needed(token=token)

    existing_key_row = await VerificationTokenRepository(
        prisma_client
    ).table.find_unique(where={"token": hashed_token})

    if existing_key_row is None:
        raise ProxyException(
            message="Key not found.",
            type=ProxyErrorTypes.not_found_error,
            param="key",
            code=status.HTTP_404_NOT_FOUND,
        )

    return existing_key_row


async def _process_single_key_update(
    update_key_request: UpdateKeyRequest,
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str],
    prisma_client: Optional[PrismaClient],
    user_api_key_cache: UserApiKeyCache,
    proxy_logging_obj: Any,
    llm_router: Optional[Router],
    user_custom_key_update: Optional[Callable] = None,
    existing_key_row: Optional[LiteLLM_VerificationToken] = None,
) -> Dict[str, Any]:
    """
    Process a single key update with all validations and checks.

    This function encapsulates all the logic for updating a single key,
    including validation, permission checks, team checks, and database updates.

    Args:
        update_key_request: Fully-constructed UpdateKeyRequest for the target key
        user_api_key_dict: The authenticated user's API key info
        litellm_changed_by: Optional header for tracking who made the change
        prisma_client: Prisma client instance
        user_api_key_cache: User API key cache
        proxy_logging_obj: Proxy logging object
        llm_router: LLM router instance
        existing_key_row: Optional pre-fetched key row to avoid redundant lookups

    Returns:
        Dict containing the updated key information

    Raises:
        HTTPException: For various validation and permission errors
    """
    # Validate max_budget
    _validate_max_budget(update_key_request.max_budget)

    # Get and validate existing key
    if existing_key_row is None:
        existing_key_row = await _get_and_validate_existing_key(
            token=update_key_request.key,
            prisma_client=prisma_client,
        )

    # Check team member permissions
    if prisma_client is not None:
        await TeamMemberPermissionChecks.can_team_member_execute_key_management_endpoint(
            user_api_key_dict=user_api_key_dict,
            route=KeyManagementRoutes.KEY_UPDATE,
            prisma_client=prisma_client,
            existing_key_row=existing_key_row,
            user_api_key_cache=user_api_key_cache,
        )

    # Custom key update hook
    if user_custom_key_update is not None:
        if inspect.iscoroutinefunction(user_custom_key_update):
            result = await user_custom_key_update(update_key_request)
        else:
            raise ValueError("user_custom_key_update must be a coroutine")
        decision = result.get("decision", True)
        message = result.get("message", "Authentication Failed - Custom Auth Rule")
        if not decision:
            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail=message)

    # Enforce upperbound key params on update (don't fill defaults)
    _enforce_upperbound_key_params(update_key_request, fill_defaults=False)

    # Get team object and check team limits if team_id is provided
    team_obj: Optional[LiteLLM_TeamTableCachedObj] = None
    if update_key_request.team_id is not None:
        team_obj = await get_team_object(
            team_id=update_key_request.team_id,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )

        if team_obj is not None and prisma_client is not None:
            await _check_team_key_limits(
                team_table=team_obj,
                data=update_key_request,
                prisma_client=prisma_client,
            )

    # Validate team change if team is being changed
    if is_different_team(data=update_key_request, existing_key_row=existing_key_row):
        if llm_router is None:
            raise HTTPException(
                status_code=400,
                detail={
                    "error": "LLM router not found. Please set it up by passing in a valid config.yaml or adding models via the UI."
                },
            )
        if team_obj is None:
            raise HTTPException(
                status_code=500,
                detail={"error": "Team object not found for team change validation"},
            )
        await validate_key_team_change(
            key=existing_key_row,
            team=team_obj,
            change_initiated_by=user_api_key_dict,
            llm_router=llm_router,
        )

    # Prepare update data
    non_default_values = await prepare_key_update_data(
        data=update_key_request, existing_key_row=existing_key_row
    )

    # Update key in database
    if prisma_client is None:
        raise HTTPException(
            status_code=500,
            detail={"error": "Database not connected"},
        )

    _data = {**non_default_values, "token": update_key_request.key}
    response = await prisma_client.update_data(token=update_key_request.key, data=_data)

    # Delete cache
    await _delete_cache_key_object(
        hashed_token=_hash_token_if_needed(update_key_request.key),
        user_api_key_cache=user_api_key_cache,
        proxy_logging_obj=proxy_logging_obj,
    )

    # Trigger async hook
    asyncio.create_task(
        KeyManagementEventHooks.async_key_updated_hook(
            data=update_key_request,
            existing_key_row=existing_key_row,
            response=response,
            user_api_key_dict=user_api_key_dict,
            litellm_changed_by=litellm_changed_by,
        )
    )

    if response is None:
        raise ValueError("Failed to update key got response = None")

    # Extract and format updated key info
    updated_key_info = response.get("data", {})
    if hasattr(updated_key_info, "model_dump"):
        updated_key_info = updated_key_info.model_dump()
    elif hasattr(updated_key_info, "dict"):
        updated_key_info = updated_key_info.dict()

    updated_key_info.pop("token", None)

    return updated_key_info


async def _validate_mcp_servers_for_key_update(
    data: "UpdateKeyRequest",
    team_obj: Optional["LiteLLM_TeamTableCachedObj"],
    existing_key_row: Any,
    prisma_client: Any,
    user_api_key_cache: Any,
) -> Optional[dict]:
    """Validate MCP servers in object_permission against the effective team."""
    effective_team_obj = team_obj
    # If team_id isn't being changed, resolve the existing key's team
    if effective_team_obj is None and existing_key_row.team_id:
        effective_team_obj = await get_team_object(
            team_id=existing_key_row.team_id,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )
    object_permission_dict: Optional[dict] = None
    if data.object_permission is not None:
        object_permission_dict = (
            data.object_permission.model_dump(exclude_unset=True)
            if hasattr(data.object_permission, "model_dump")
            else dict(data.object_permission)  # type: ignore[arg-type]
        )
    normalized_object_permission = await validate_key_mcp_servers_against_team(
        object_permission=object_permission_dict,
        team_obj=effective_team_obj,
        prisma_client=prisma_client,
    )
    await validate_key_search_tools_against_team(
        object_permission=object_permission_dict,
        team_obj=effective_team_obj,
    )
    return normalized_object_permission


async def _validate_update_key_data(
    data: UpdateKeyRequest,
    existing_key_row: Any,
    user_api_key_dict: UserAPIKeyAuth,
    llm_router: Any,
    premium_user: bool,
    prisma_client: Any,
    user_api_key_cache: Any,
) -> None:
    """Validate permissions and constraints for key update."""
    _is_proxy_admin = user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value

    _check_allowed_routes_caller_permission(
        allowed_routes=data.allowed_routes,
        user_api_key_dict=user_api_key_dict,
    )
    _check_passthrough_routes_caller_permission(
        data=data,
        user_api_key_dict=user_api_key_dict,
    )

    _validate_caller_can_change_key_ownership(
        data=data,
        existing_key_row=existing_key_row,
        user_api_key_dict=user_api_key_dict,
    )

    common_key_access_checks(
        user_api_key_dict=user_api_key_dict,
        data=data,
        user_id=existing_key_row.user_id,
        llm_router=llm_router,
        premium_user=premium_user,
    )

    await TeamMemberPermissionChecks.can_team_member_execute_key_management_endpoint(
        user_api_key_dict=user_api_key_dict,
        route=KeyManagementRoutes.KEY_UPDATE,
        prisma_client=prisma_client,
        existing_key_row=existing_key_row,
        user_api_key_cache=user_api_key_cache,
    )

    # Cross-key authorization. Previously only gated on max_budget/spend
    # changes, which let a non-admin blanket-rewrite any OTHER field on
    # any key (models, alias, metadata, tpm_limit, rpm_limit,
    # allowed_routes, guardrails, blocked, duration, permissions, …) as
    # long as they avoided budget/spend.
    #
    # Policy:
    # - Key owner (same user_id): may update non-budget fields on their
    #   own key without the admin check.
    # - Team member with /key/update grant (on a team key): may update
    #   non-budget fields. Team membership + permission is already
    #   enforced by can_team_member_execute_key_management_endpoint
    #   above, which raises 401 for non-members or members without the
    #   grant — so reaching this point on a team key means the caller
    #   was authorized via member_permissions. This preserves the
    #   documented member_permissions feature while still blocking the
    #   cross-org attack (an outside org admin is not a member of the
    #   victim team and gets rejected at the earlier check).
    # - Anyone else (non-PROXY_ADMIN, not the owner, not a team member
    #   on a team key): must pass _check_key_admin_access (PROXY_ADMIN
    #   / key-owner / team-admin / org-admin of the key).
    # - max_budget / spend / budget_limits: always require the admin
    #   check, even for the key owner or a team member (matches the
    #   existing admin-only budget semantics).  budget_limits uses
    #   model_fields_set because an explicit null/[] clears the field
    #   and must gate the same as setting or changing it.
    _is_budget_change = (
        (data.max_budget is not None and data.max_budget != existing_key_row.max_budget)
        or (
            data.spend is not None
            and data.spend != getattr(existing_key_row, "spend", None)
        )
        or "budget_limits" in data.model_fields_set
    )

    # Personal-key bypass: the caller both created the key AND still owns it
    # (user_id == caller).  Checking only created_by would let a demoted admin
    # who originally created a key for another user continue editing it without
    # admin authorization after the key was reassigned.
    caller_is_creator = (
        user_api_key_dict.user_id is not None
        and getattr(existing_key_row, "created_by", None) == user_api_key_dict.user_id
        and getattr(existing_key_row, "user_id", None) == user_api_key_dict.user_id
    )
    # Team keys: can_team_member_execute_key_management_endpoint (called above)
    # already validated team membership + /key/update permission and would have
    # raised if the caller lacked it.  Reaching this point on a team key for a
    # non-budget change means the caller was authorized — skip the redundant
    # _check_key_admin_access that would otherwise require team/org admin status.
    _key_is_team_key = getattr(existing_key_row, "team_id", None) is not None
    can_skip_admin_check = (
        caller_is_creator or _key_is_team_key
    ) and not _is_budget_change
    if (not _is_proxy_admin) and prisma_client is not None and not can_skip_admin_check:
        hashed_key = existing_key_row.token
        await _check_key_admin_access(
            user_api_key_dict=user_api_key_dict,
            hashed_token=hashed_key,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            route=(
                "/key/update (max_budget/spend)" if _is_budget_change else "/key/update"
            ),
        )

    # Check team limits if key has a team_id (from request or existing key)
    team_obj: Optional[LiteLLM_TeamTableCachedObj] = None
    _team_id_to_check = data.team_id or getattr(existing_key_row, "team_id", None)
    if _team_id_to_check is not None:
        team_obj = await get_team_object(
            team_id=_team_id_to_check,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )

        # Validate team exists when non-admin sets a new team_id (LIT-1884)
        if team_obj is None and data.team_id is not None and not _is_proxy_admin:
            raise HTTPException(
                status_code=400,
                detail=f"Team not found for team_id={data.team_id}. Non-admin users cannot set keys to non-existent teams.",
            )

        # Field-level opt-in: non-admin members may only assign access groups when
        # the team has enabled KEY_ACCESS_GROUP_ASSIGNMENT.
        TeamMemberPermissionChecks.enforce_member_can_assign_access_groups(
            user_api_key_dict=user_api_key_dict,
            team_table=team_obj,
            access_group_ids=data.access_group_ids,
        )

        if team_obj is not None:
            await _check_team_key_limits(
                team_table=team_obj,
                data=data,
                prisma_client=prisma_client,
            )

    # Validate key against project limits if project_id is being set
    _project_id_to_check = getattr(data, "project_id", None) or getattr(
        existing_key_row, "project_id", None
    )
    if _project_id_to_check is not None and (
        data.models is not None or data.max_budget is not None
    ):
        await _check_project_key_limits(
            project_id=_project_id_to_check,
            data=data,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
        )

    # When the caller asks to change the key's organization_id, require that
    # they are a member of (or a proxy admin over) the target organization.
    # Without this gate, any caller could assign their key to an arbitrary
    # organization_id by passing it in the request body — VERIA-55 secondary
    # IDOR. The check mirrors the membership rule already used on the
    # `/key/list` filter path in `validate_key_list_check`.
    _existing_org_id = getattr(existing_key_row, "organization_id", None)
    if (
        data.organization_id is not None
        and data.organization_id != _existing_org_id
        and not _is_proxy_admin
    ):
        await _validate_caller_can_assign_key_org(
            user_api_key_dict=user_api_key_dict,
            organization_id=data.organization_id,
            prisma_client=prisma_client,
        )

    # Check org key limits only when throughput-related fields or organization_id change
    _org_id_to_check = data.organization_id or _existing_org_id
    _throughput_fields_changed = (
        data.organization_id is not None
        or data.tpm_limit is not None
        or data.rpm_limit is not None
        or data.tpm_limit_type is not None
        or data.rpm_limit_type is not None
    )
    if _org_id_to_check is not None and _throughput_fields_changed:
        org_table = await get_org_object(
            org_id=_org_id_to_check,
            user_api_key_cache=user_api_key_cache,
            prisma_client=prisma_client,
        )
        if org_table is None:
            raise HTTPException(
                status_code=400,
                detail=f"Organization not found for organization_id={_org_id_to_check}",
            )
        await _check_org_key_limits(
            org_table=org_table,
            data=data,
            prisma_client=prisma_client,
        )

    # if team change - check if this is possible
    if is_different_team(data=data, existing_key_row=existing_key_row):
        if llm_router is None:
            raise HTTPException(
                status_code=400,
                detail={
                    "error": "LLM router not found. Please set it up by passing in a valid config.yaml or adding models via the UI."
                },
            )
        if team_obj is None:
            raise HTTPException(
                status_code=500,
                detail={"error": "Team object not found for team change validation"},
            )
        await validate_key_team_change(
            key=existing_key_row,
            team=team_obj,
            change_initiated_by=user_api_key_dict,
            llm_router=llm_router,
        )

    # Validate MCP servers in object_permission against the effective team
    if data.object_permission is not None:
        normalized_object_permission = await _validate_mcp_servers_for_key_update(
            data=data,
            team_obj=team_obj,
            existing_key_row=existing_key_row,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
        )
        if normalized_object_permission is not None:
            data.object_permission = LiteLLM_ObjectPermissionBase(
                **normalized_object_permission
            )


@router.post(
    "/key/update", tags=["key management"], dependencies=[Depends(user_api_key_auth)]
)
@management_endpoint_wrapper
async def update_key_fn(
    request: Request,
    data: UpdateKeyRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Update an existing API key's parameters.

    Parameters:
    - key: str - The key to update
    - key_alias: Optional[str] - User-friendly key alias
    - user_id: Optional[str] - User ID associated with key
    - team_id: Optional[str] - Team ID associated with key
    - agent_id: Optional[str] - The agent id associated with the key.
    - organization_id: Optional[str] - The organization id of the key.
    - budget_id: Optional[str] - The budget id associated with the key. Created by calling `/budget/new`.
    - models: Optional[list] - Model_name's a user is allowed to call
    - tags: Optional[List[str]] - Tags for organizing keys (Enterprise only)
    - prompts: Optional[List[str]] - List of prompts that the key is allowed to use.
    - enforced_params: Optional[List[str]] - List of enforced params for the key (Enterprise only). [Docs](https://docs.litellm.ai/docs/proxy/enterprise#enforce-required-params-for-llm-requests)
    - spend: Optional[float] - Amount spent by key
    - max_budget: Optional[float] - Max budget for key
    - model_max_budget: Optional[Dict[str, BudgetConfig]] - Model-specific budgets {"gpt-4": {"budget_limit": 0.0005, "time_period": "30d"}}
    - budget_duration: Optional[str] - Budget reset period ("30d", "1h", etc.)
    - soft_budget: Optional[float] - [TODO] Soft budget limit (warning vs. hard stop). Will trigger a slack alert when this soft budget is reached.
    - max_parallel_requests: Optional[int] - Rate limit for parallel requests
    - metadata: Optional[dict] - Metadata for key. Example {"team": "core-infra", "app": "app2"}
    - tpm_limit: Optional[int] - Tokens per minute limit
    - rpm_limit: Optional[int] - Requests per minute limit
    - model_rpm_limit: Optional[dict] - Model-specific RPM limits {"gpt-4": 100, "claude-v1": 200}
    - mcp_rpm_limit: Optional[dict] - Per-MCP-server RPM limits, keyed by MCP server name {"github": 100, "slack": 200}
    - model_tpm_limit: Optional[dict] - Model-specific TPM limits {"gpt-4": 100000, "claude-v1": 200000}
    - tpm_limit_type: Optional[str] - TPM rate limit type - "best_effort_throughput", "guaranteed_throughput", or "dynamic"
    - rpm_limit_type: Optional[str] - RPM rate limit type - "best_effort_throughput", "guaranteed_throughput", or "dynamic"
    - allowed_cache_controls: Optional[list] - List of allowed cache control values
    - duration: Optional[str] - Key validity duration ("30d", "1h", etc.), null to never expire, or "-1" to never expire (deprecated, use null)
    - permissions: Optional[dict] - Key-specific permissions
    - send_invite_email: Optional[bool] - Send invite email to user_id
    - guardrails: Optional[List[str]] - List of active guardrails for the key
    - policies: Optional[List[str]] - List of policy names to apply to the key. Policies define guardrails, conditions, and inheritance rules.
    - disable_global_guardrails: Optional[bool] - Whether to disable global guardrails for the key.
    - prompts: Optional[List[str]] - List of prompts that the key is allowed to use.
    - blocked: Optional[bool] - Whether the key is blocked
    - aliases: Optional[dict] - Model aliases for the key - [Docs](https://litellm.vercel.app/docs/proxy/virtual_keys#model-aliases)
    - config: Optional[dict] - [DEPRECATED PARAM] Key-specific config.
    - temp_budget_increase: Optional[float] - Temporary budget increase for the key (Enterprise only).
    - temp_budget_expiry: Optional[str] - Expiry time for the temporary budget increase (Enterprise only).
    - allowed_routes: Optional[list] - List of allowed routes for the key. Store the actual route or store a wildcard pattern for a set of routes. Example - ["/chat/completions", "/embeddings", "/keys/*"]
    - allowed_passthrough_routes: Optional[list] - List of allowed pass through routes for the key. Store the actual route or store a wildcard pattern for a set of routes. Example - ["/my-custom-endpoint"]. Use this instead of allowed_routes, if you just want to specify which pass through routes the key can access, without specifying the routes. If allowed_routes is specified, allowed_passthrough_routes is ignored.
    - prompts: Optional[List[str]] - List of allowed prompts for the key. If specified, the key will only be able to use these specific prompts.
    - object_permission: Optional[LiteLLM_ObjectPermissionBase] - key-specific object permission. Example - {"vector_stores": ["vector_store_1", "vector_store_2"], "agents": ["agent_1", "agent_2"], "agent_access_groups": ["dev_group"]}. IF null or {} then no object permission.
    - auto_rotate: Optional[bool] - Whether this key should be automatically rotated
    - rotation_interval: Optional[str] - How often to rotate this key (e.g., '30d', '90d'). Required if auto_rotate=True
    - allowed_vector_store_indexes: Optional[List[dict]] - List of allowed vector store indexes for the key. Example - [{"index_name": "my-index", "index_permissions": ["write", "read"]}]. If specified, the key will only be able to use these specific vector store indexes. Create index, using `/v1/indexes` endpoint.
    - router_settings: Optional[UpdateRouterConfig] - key-specific router settings. Example - {"model_group_retry_policy": {"max_retries": 5}}. IF null or {} then no router settings.
    - access_group_ids: Optional[List[str]] - List of access group IDs to associate with the key. Access groups define which models a key can access. Example - ["access_group_1", "access_group_2"].
    - budget_limits: Optional[list] - List of concurrent budget windows for the key. Each window specifies a budget_limit, time_period, and optional budget_duration. Example - [{"budget_limit": 10.0, "time_period": "1d"}, {"budget_limit": 50.0, "time_period": "7d"}].

    Example:
    ```bash
    curl --location 'http://0.0.0.0:4000/key/update' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data '{
        "key": "sk-1234",
        "key_alias": "my-key",
        "user_id": "user-1234",
        "team_id": "team-1234",
        "max_budget": 100,
        "metadata": {"any_key": "any-val"},
    }'
    ```
    """
    from litellm.proxy.proxy_server import (
        llm_router,
        premium_user,
        prisma_client,
        proxy_logging_obj,
        user_api_key_cache,
        user_custom_key_update,
    )

    try:
        # Validate budget values are not negative and are finite numbers
        if data.max_budget is not None and (
            not math.isfinite(data.max_budget) or data.max_budget < 0
        ):
            raise HTTPException(
                status_code=400,
                detail={
                    "error": f"max_budget must be a non-negative finite number. Received: {data.max_budget}"
                },
            )

        data_json: dict = data.model_dump(exclude_unset=True)
        key = data_json.pop("key")

        # get the row from db
        existing_key_row = await _get_and_validate_existing_key(
            token=data.key,
            prisma_client=prisma_client,
        )

        await _validate_update_key_data(
            data=data,
            existing_key_row=existing_key_row,
            user_api_key_dict=user_api_key_dict,
            llm_router=llm_router,
            premium_user=premium_user,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
        )

        # Custom key update hook
        if user_custom_key_update is not None:
            if inspect.iscoroutinefunction(user_custom_key_update):
                result = await user_custom_key_update(data)
            else:
                raise ValueError("user_custom_key_update must be a coroutine")
            decision = result.get("decision", True)
            message = result.get("message", "Authentication Failed - Custom Auth Rule")
            if not decision:
                raise HTTPException(
                    status_code=status.HTTP_403_FORBIDDEN, detail=message
                )

        # Enforce upperbound key params on update (don't fill defaults)
        _enforce_upperbound_key_params(data, fill_defaults=False)
        non_default_values = await prepare_key_update_data(
            data=data, existing_key_row=existing_key_row
        )

        # Only validate key_alias format if it's actually being changed
        new_key_alias = non_default_values.get("key_alias", None)
        if new_key_alias != existing_key_row.key_alias:
            _validate_key_alias_format(key_alias=new_key_alias)

        await _enforce_unique_key_alias(
            key_alias=non_default_values.get("key_alias", None),
            prisma_client=prisma_client,
            existing_key_token=existing_key_row.token,
        )

        # Handle rotation fields if auto_rotate is being enabled
        _set_key_rotation_fields(
            non_default_values,
            non_default_values.get("auto_rotate", False),
            non_default_values.get("rotation_interval"),
            existing_key_alias=existing_key_row.key_alias,
        )

        _data = {**non_default_values, "token": key}
        if prisma_client is None:
            raise Exception("Not connected to DB!")
        response = await prisma_client.update_data(token=key, data=_data)

        # Delete - key from cache, since it's been updated!
        # key updated - a new model could have been added to this key. it should not block requests after this is done
        await _delete_cache_key_object(
            hashed_token=_hash_token_if_needed(key),
            user_api_key_cache=user_api_key_cache,
            proxy_logging_obj=proxy_logging_obj,
        )

        if data.spend is not None:
            try:
                from litellm.proxy.proxy_server import _invalidate_spend_counter

                token_to_invalidate = _hash_token_if_needed(key)
                await _invalidate_spend_counter(
                    counter_key=f"spend:key:{token_to_invalidate}"
                )
            except Exception:
                pass

        asyncio.create_task(
            KeyManagementEventHooks.async_key_updated_hook(
                data=data,
                existing_key_row=existing_key_row,
                response=response,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
            )
        )

        if response is None:
            raise ValueError("Failed to update key got response = None")

        return {"key": key, **response["data"]}
        # update based on remaining passed in values
    except Exception as e:
        verbose_proxy_logger.exception(
            "litellm.proxy.proxy_server.update_key_fn(): Exception occured - {}".format(
                str(e)
            )
        )
        if isinstance(e, HTTPException):
            raise ProxyException(
                message=getattr(e, "detail", f"Authentication Error({str(e)})"),
                type=ProxyErrorTypes.auth_error,
                param=getattr(e, "param", "None"),
                code=getattr(e, "status_code", status.HTTP_400_BAD_REQUEST),
            )
        elif isinstance(e, ProxyException):
            raise e
        raise ProxyException(
            message="Authentication Error, " + str(e),
            type=ProxyErrorTypes.auth_error,
            param=getattr(e, "param", "None"),
            code=status.HTTP_400_BAD_REQUEST,
        )


@router.post(
    "/key/bulk_update",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
    response_model=BulkUpdateKeyResponse,
)
@management_endpoint_wrapper
async def bulk_update_keys(
    data: BulkUpdateKeyRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Bulk update multiple keys at once.
    
    This endpoint allows updating multiple keys in a single request. Each key update
    is processed independently - if some updates fail, others will still succeed.
    
    Parameters:
    - keys: List[BulkUpdateKeyRequestItem] - List of key update requests, each containing:
        - key: str - The key identifier (token) to update
        - budget_id: Optional[str] - Budget ID associated with the key
        - max_budget: Optional[float] - Max budget for key
        - team_id: Optional[str] - Team ID associated with key
        - tags: Optional[List[str]] - Tags for organizing keys
    
    Returns:
    - total_requested: int - Total number of keys requested for update
    - successful_updates: List[SuccessfulKeyUpdate] - List of successfully updated keys with their updated info
    - failed_updates: List[FailedKeyUpdate] - List of failed updates with key_info and failed_reason
    
    Example request:
    ```bash
    curl --location 'http://0.0.0.0:4000/key/bulk_update' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data '{
        "keys": [
            {
                "key": "sk-1234",
                "max_budget": 100.0,
                "team_id": "team-123",
                "tags": ["production", "api"]
            },
            {
                "key": "sk-5678",
                "budget_id": "budget-456",
                "tags": ["staging"]
            }
        ]
    }'
    ```
    """
    from litellm.proxy.proxy_server import (
        llm_router,
        prisma_client,
        proxy_logging_obj,
        user_api_key_cache,
        user_custom_key_update,
    )

    if user_api_key_dict.user_role != LitellmUserRoles.PROXY_ADMIN.value:
        raise HTTPException(
            status_code=403,
            detail={"error": "Only proxy admins can perform bulk key updates"},
        )

    if prisma_client is None:
        raise HTTPException(
            status_code=500,
            detail={"error": "Database not connected"},
        )

    if not data.keys:
        raise HTTPException(
            status_code=400,
            detail={"error": "No keys provided for update"},
        )

    MAX_BATCH_SIZE = 500
    if len(data.keys) > MAX_BATCH_SIZE:
        raise HTTPException(
            status_code=400,
            detail={
                "error": f"Maximum {MAX_BATCH_SIZE} keys can be updated at once. Found {len(data.keys)} keys."
            },
        )

    successful_updates: List[SuccessfulKeyUpdate] = []
    failed_updates: List[FailedKeyUpdate] = []

    for key_update_item in data.keys:
        try:
            update_key_request = UpdateKeyRequest(
                key=key_update_item.key,
                budget_id=key_update_item.budget_id,
                max_budget=key_update_item.max_budget,
                team_id=key_update_item.team_id,
                tags=key_update_item.tags,
            )
            updated_key_info = await _process_single_key_update(
                update_key_request=update_key_request,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
                prisma_client=prisma_client,
                user_api_key_cache=user_api_key_cache,
                proxy_logging_obj=proxy_logging_obj,
                llm_router=llm_router,
                user_custom_key_update=user_custom_key_update,
            )

            successful_updates.append(
                SuccessfulKeyUpdate(
                    key=key_update_item.key,
                    key_info=updated_key_info,
                )
            )

        except Exception as e:
            verbose_proxy_logger.exception(
                f"Failed to update key {key_update_item.key}: {e}"
            )

            if isinstance(e, HTTPException):
                error_detail = e.detail
                if isinstance(error_detail, dict):
                    error_message = error_detail.get("error", str(e))
                else:
                    error_message = str(error_detail)
            elif isinstance(e, ProxyException):
                error_message = e.message
            else:
                error_message = str(e)

            key_info = None
            try:
                existing_key_row = await prisma_client.get_data(
                    token=key_update_item.key,
                    table_name="key",
                    query_type="find_unique",
                )
                if existing_key_row is not None:
                    if hasattr(existing_key_row, "model_dump"):
                        key_info = existing_key_row.model_dump()
                    elif hasattr(existing_key_row, "dict"):
                        key_info = existing_key_row.dict()
                    if key_info:
                        key_info.pop("token", None)
            except Exception:
                pass

            failed_updates.append(
                FailedKeyUpdate(
                    key=key_update_item.key,
                    key_info=key_info,
                    failed_reason=error_message,
                )
            )

    return BulkUpdateKeyResponse(
        total_requested=len(data.keys),
        successful_updates=successful_updates,
        failed_updates=failed_updates,
    )


def _build_failed_team_key_update(
    token: str,
    exception: Exception,
    existing_key_row: Optional[LiteLLM_VerificationToken],
) -> FailedKeyUpdate:
    """Normalize an exception from the per-key update loop into a FailedKeyUpdate."""
    if isinstance(exception, HTTPException):
        detail = exception.detail
        if isinstance(detail, dict):
            error_message = detail.get("error", str(exception))
        else:
            error_message = str(detail)
    elif isinstance(exception, ProxyException):
        error_message = exception.message
    else:
        error_message = str(exception)

    key_info: Optional[Dict[str, Any]] = None
    if existing_key_row is not None:
        if hasattr(existing_key_row, "model_dump"):
            key_info = existing_key_row.model_dump()
        elif hasattr(existing_key_row, "dict"):
            key_info = existing_key_row.dict()
        if key_info:
            key_info.pop("token", None)

    return FailedKeyUpdate(key=token, key_info=key_info, failed_reason=error_message)


@router.post(
    "/team/key/bulk_update",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
    response_model=BulkUpdateKeyResponse,
)
@management_endpoint_wrapper
async def bulk_update_team_keys(
    data: BulkUpdateTeamKeysRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Apply one update payload to many keys inside a single team.

    Pass `team_id` plus either `key_ids` or `all_keys_in_team=True`. The
    `update_fields` payload is broadcast to every selected key. Per-key
    failures are returned in `failed_updates` rather than aborting the batch.

    Callable by proxy admins, or by team admins with `KEY_UPDATE` permission.
    """
    from litellm.proxy.proxy_server import (
        llm_router,
        prisma_client,
        proxy_logging_obj,
        user_api_key_cache,
        user_custom_key_update,
    )

    if prisma_client is None:
        raise HTTPException(
            status_code=500,
            detail={"error": "Database not connected"},
        )

    if not data.team_id:
        raise HTTPException(
            status_code=400,
            detail={"error": "team_id is required"},
        )

    MAX_BATCH_SIZE = 500
    if data.key_ids is not None and len(data.key_ids) > MAX_BATCH_SIZE:
        raise HTTPException(
            status_code=400,
            detail={
                "error": f"Maximum {MAX_BATCH_SIZE} keys can be updated at once. Found {len(data.key_ids)} key_ids."
            },
        )

    if data.all_keys_in_team:
        # "all" excludes blocked/expired — bulk refresh shouldn't revive a key an admin disabled.
        # `blocked` is Boolean? with no default; `/key/generate` writes NULL. Prisma's `NOT`
        # excludes NULLs, so explicitly OR `false` with `null` to include them.
        now = datetime.now(timezone.utc)
        existing_keys = await VerificationTokenRepository(
            prisma_client
        ).table.find_many(
            where={
                "team_id": data.team_id,
                "AND": [
                    {"OR": [{"blocked": False}, {"blocked": None}]},
                    {"OR": [{"expires": None}, {"expires": {"gt": now}}]},
                ],
            },
            order={"token": "asc"},
            take=MAX_BATCH_SIZE + 1,
        )
        if len(existing_keys) > MAX_BATCH_SIZE:
            raise HTTPException(
                status_code=400,
                detail={
                    "error": f"Team {data.team_id} has more than {MAX_BATCH_SIZE} keys. Use `key_ids` to update in batches of {MAX_BATCH_SIZE}."
                },
            )
        requested_tokens = [row.token for row in existing_keys]
    else:
        if data.key_ids is None or len(data.key_ids) == 0:
            raise HTTPException(
                status_code=400,
                detail={
                    "error": "key_ids must be provided when all_keys_in_team is False"
                },
            )
        # Dedupe by hashed form — duplicates collapse to one update.
        requested_tokens = []
        hashed_key_ids = []
        seen_hashes = set()
        for k in data.key_ids:
            h = _hash_token_if_needed(k)
            if h in seen_hashes:
                continue
            seen_hashes.add(h)
            requested_tokens.append(k)
            hashed_key_ids.append(h)
        existing_keys = await VerificationTokenRepository(
            prisma_client
        ).table.find_many(
            where={"team_id": data.team_id, "token": {"in": hashed_key_ids}}
        )

    # Anchor membership check on data.team_id (not existing_keys[0]); empty result must still gate non-admins.
    if user_api_key_dict.user_role != LitellmUserRoles.PROXY_ADMIN.value:
        auth_anchor = (
            existing_keys[0]
            if existing_keys
            else LiteLLM_VerificationToken(
                token="__team_scope_auth_check__",
                team_id=data.team_id,
                models=[],
            )
        )
        await TeamMemberPermissionChecks.can_team_member_execute_key_management_endpoint(
            user_api_key_dict=user_api_key_dict,
            route=KeyManagementRoutes.KEY_UPDATE,
            prisma_client=prisma_client,
            existing_key_row=auth_anchor,
            user_api_key_cache=user_api_key_cache,
        )

    # Block metadata.allowed_passthrough_routes for non-admins — the runtime
    # route checker reads it from key/team metadata to grant passthrough.
    _check_passthrough_routes_caller_permission(
        data=data.update_fields, user_api_key_dict=user_api_key_dict
    )

    if not requested_tokens:
        raise HTTPException(
            status_code=404,
            detail={"error": f"No keys found for team {data.team_id}"},
        )

    existing_by_token = {row.token: row for row in existing_keys}
    update_field_dict = data.update_fields.model_dump(exclude_unset=True)

    successful_updates: List[SuccessfulKeyUpdate] = []
    failed_updates: List[FailedKeyUpdate] = []

    for token in requested_tokens:
        db_token = _hash_token_if_needed(token)
        try:
            if db_token not in existing_by_token:
                raise HTTPException(
                    status_code=404,
                    detail={"error": f"Key not found in team {data.team_id}"},
                )

            # team_id from validated scope, never user payload — drives _check_team_key_limits.
            update_key_request = UpdateKeyRequest(
                key=token,
                team_id=data.team_id,
                **update_field_dict,
            )
            updated_key_info = await _process_single_key_update(
                update_key_request=update_key_request,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
                prisma_client=prisma_client,
                user_api_key_cache=user_api_key_cache,
                proxy_logging_obj=proxy_logging_obj,
                llm_router=llm_router,
                user_custom_key_update=user_custom_key_update,
                existing_key_row=existing_by_token[db_token],
            )

            successful_updates.append(
                SuccessfulKeyUpdate(key=token, key_info=updated_key_info)
            )

        except Exception as e:
            # Log the hashed prefix — `token` may be a raw sk-... and ERROR logs persist.
            verbose_proxy_logger.exception(
                f"Failed to update key {db_token[:12]}... in team {data.team_id}: {e}"
            )
            failed_updates.append(
                _build_failed_team_key_update(
                    token=token,
                    exception=e,
                    existing_key_row=existing_by_token.get(db_token),
                )
            )

    return BulkUpdateKeyResponse(
        total_requested=len(requested_tokens),
        successful_updates=successful_updates,
        failed_updates=failed_updates,
    )


async def validate_key_team_change(
    key: LiteLLM_VerificationToken,
    team: LiteLLM_TeamTable,
    change_initiated_by: UserAPIKeyAuth,
    llm_router: Router,
):
    """
    Validate that a key can be moved to a new team.

    - The team must have access to the key's models
    - The key's user_id must be a member of the team
    - The key's tpm/rpm limit must be less than the team's tpm/rpm limit
    - The person initiating the change must be either Proxy Admin or Team Admin
    """
    # Check if the team has access to the key's models
    if len(key.models) > 0:
        for model in key.models:
            # Skip special sentinel values — "all-team-models" means
            # "use whatever the team allows", so it's always valid.
            if model == SpecialModelNames.all_team_models.value:
                continue
            await can_team_access_model(
                model=model,
                team_object=team,
                llm_router=llm_router,
            )

    # Check if the key's tpm/rpm limit is less than the team's tpm/rpm limit
    if key.tpm_limit is not None:
        if team.tpm_limit and key.tpm_limit > team.tpm_limit:
            raise HTTPException(
                status_code=403,
                detail=f"Key={key.token} has a tpm_limit={key.tpm_limit} which is greater than the team's tpm_limit={team.tpm_limit}.",
            )
        if team.rpm_limit and key.rpm_limit and key.rpm_limit > team.rpm_limit:
            raise HTTPException(
                status_code=403,
                detail=f"Key={key.token} has a rpm_limit={key.rpm_limit} which is greater than the team's rpm_limit={team.rpm_limit}.",
            )

    # Check if the key's user_id is a member of the team
    member_object = _get_user_in_team(
        team_table=cast(LiteLLM_TeamTableCachedObj, team), user_id=key.user_id
    )
    if key.user_id is not None:
        if not member_object:
            raise HTTPException(
                status_code=403,
                detail=f"User={key.user_id} is not a member of the team={team.team_id}. Check team members via `/team/info`.",
            )

    # Check if the person initiating the change is a Proxy Admin or Team Admin
    if change_initiated_by.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return
    elif _is_user_team_admin(
        user_api_key_dict=change_initiated_by,
        team_obj=team,
    ):
        return
    # this teams member permissions allow updating a
    elif TeamMemberPermissionChecks.does_team_member_have_permissions_for_endpoint(
        team_member_object=member_object,
        team_table=cast(LiteLLM_TeamTableCachedObj, team),
        route=KeyManagementRoutes.KEY_UPDATE.value,
    ):
        return
    else:
        raise HTTPException(
            status_code=403,
            detail=f"User={change_initiated_by.user_id} is not a Proxy Admin or Team Admin for team={team.team_id}. Please ask your Proxy Admin to allow this action under 'Member Permissions' for this team.",
        )


@router.post(
    "/key/delete", tags=["key management"], dependencies=[Depends(user_api_key_auth)]
)
@management_endpoint_wrapper
async def delete_key_fn(
    data: KeyRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Delete a key from the key management system.

    Parameters::
    - keys (List[str]): A list of keys or hashed keys to delete. Example {"keys": ["sk-QWrxEynunsNpV1zT48HIrw", "837e17519f44683334df5291321d97b8bf1098cd490e49e215f6fea935aa28be"]}
    - key_aliases (List[str]): A list of key aliases to delete. Can be passed instead of `keys`.Example {"key_aliases": ["alias1", "alias2"]}

    Returns:
    - deleted_keys (List[str]): A list of deleted keys. Example {"deleted_keys": ["sk-QWrxEynunsNpV1zT48HIrw", "837e17519f44683334df5291321d97b8bf1098cd490e49e215f6fea935aa28be"]}

    Example:
    ```bash
    curl --location 'http://0.0.0.0:4000/key/delete' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data '{
        "keys": ["sk-QWrxEynunsNpV1zT48HIrw"]
    }'
    ```

    Raises:
        HTTPException: If an error occurs during key deletion.
    """
    try:
        from litellm.proxy.proxy_server import prisma_client, user_api_key_cache

        if prisma_client is None:
            raise Exception("Not connected to DB!")

        # Normalize litellm_changed_by: if it's a Header object or not a string, convert to None
        if litellm_changed_by is not None and not isinstance(litellm_changed_by, str):
            litellm_changed_by = None

        ## only allow user to delete keys they own
        verbose_proxy_logger.debug(
            f"user_api_key_dict.user_role: {user_api_key_dict.user_role}"
        )

        num_keys_to_be_deleted = 0
        deleted_keys = []
        if data.keys:
            number_deleted_keys, _keys_being_deleted = await delete_verification_tokens(
                tokens=data.keys,
                user_api_key_cache=user_api_key_cache,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
            )
            num_keys_to_be_deleted = len(data.keys)
            deleted_keys = data.keys
        elif data.key_aliases:
            number_deleted_keys, _keys_being_deleted = await delete_key_aliases(
                key_aliases=data.key_aliases,
                prisma_client=prisma_client,
                user_api_key_cache=user_api_key_cache,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
            )
            num_keys_to_be_deleted = len(data.key_aliases)
            deleted_keys = data.key_aliases
        else:
            raise ValueError("Invalid request type")

        if number_deleted_keys is None:
            raise ProxyException(
                message="Failed to delete keys got None response from delete_verification_token",
                type=ProxyErrorTypes.internal_server_error,
                param="keys",
                code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            )
        verbose_proxy_logger.debug(f"/key/delete - deleted_keys={number_deleted_keys}")

        try:
            assert num_keys_to_be_deleted == len(deleted_keys)
        except Exception:
            raise HTTPException(
                status_code=400,
                detail={
                    "error": f"Not all keys passed in were deleted. This probably means you don't have access to delete all the keys passed in. Keys passed in={num_keys_to_be_deleted}, Deleted keys ={number_deleted_keys}"
                },
            )

        verbose_proxy_logger.debug(
            f"/keys/delete - cache after delete: {user_api_key_cache.in_memory_cache.cache_dict}"
        )

        asyncio.create_task(
            KeyManagementEventHooks.async_key_deleted_hook(
                data=data,
                keys_being_deleted=_keys_being_deleted,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
                response=number_deleted_keys,
            )
        )

        return {"deleted_keys": deleted_keys}
    except Exception as e:
        verbose_proxy_logger.exception(
            "litellm.proxy.proxy_server.delete_key_fn(): Exception occured - {}".format(
                str(e)
            )
        )
        raise handle_exception_on_proxy(e)


async def _get_model_max_budget_current_spend(
    api_key_hash: str,
    model: str,
    budget_config: BudgetConfig,
    user_api_key_cache: UserApiKeyCache,
) -> float:
    virtual_key_model_spend_cache_key = (
        f"{VIRTUAL_KEY_SPEND_CACHE_KEY_PREFIX}:"
        f"{api_key_hash}:{model}:{budget_config.budget_duration}"
    )
    current_spend: float | None = await user_api_key_cache.async_get_cache(
        key=virtual_key_model_spend_cache_key,
    )
    if current_spend is None:
        model_without_prefix = model.split("/")[-1] if "/" in model else model
        virtual_key_model_spend_cache_key = (
            f"{VIRTUAL_KEY_SPEND_CACHE_KEY_PREFIX}:"
            f"{api_key_hash}:{model_without_prefix}:{budget_config.budget_duration}"
        )
        current_spend = await user_api_key_cache.async_get_cache(
            key=virtual_key_model_spend_cache_key,
        )
    try:
        return float(current_spend or 0.0)
    except (TypeError, ValueError):
        return 0.0


async def _build_model_max_budget_usage(
    api_key_hash: str,
    model_max_budget: Mapping[str, Mapping[str, object]],
    user_api_key_cache: UserApiKeyCache | None,
) -> dict[str, dict[str, object]]:
    if user_api_key_cache is None or not model_max_budget:
        return {}

    result: dict[str, dict[str, object]] = {}
    for model, budget_info in model_max_budget.items():
        try:
            budget_config = BudgetConfig.model_validate(budget_info)
            if budget_config.budget_duration is None:
                continue
            duration_in_seconds(budget_config.budget_duration)
        except Exception:  # noqa: BLE001
            continue
        spend = await _get_model_max_budget_current_spend(
            api_key_hash=api_key_hash,
            model=model,
            budget_config=budget_config,
            user_api_key_cache=user_api_key_cache,
        )
        result[model] = {
            "current_spend": round(spend, 4),
            "budget_limit": budget_config.max_budget,
            "time_period": budget_config.budget_duration,
        }
    return result


@router.post(
    "/v2/key/info",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
    include_in_schema=False,
)
async def info_key_fn_v2(
    data: Optional[KeyRequest] = None,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
):
    """
    Retrieve information about a list of keys.

    **New endpoint**. Currently admin only.
    Parameters:
        keys: Optional[list] = body parameter representing the key(s) in the request
        user_api_key_dict: UserAPIKeyAuth = Dependency representing the user's API key
    Returns:
        Dict containing the key and its associated information

    Example Curl:
    ```
    curl -X GET "http://0.0.0.0:4000/key/info" \
    -H "Authorization: Bearer sk-1234" \
    -d {"keys": ["sk-1", "sk-2", "sk-3"]}
    ```
    """
    from litellm.proxy.proxy_server import prisma_client, user_api_key_cache

    try:
        if prisma_client is None:
            raise Exception(
                "Database not connected. Connect a database to your proxy - https://docs.litellm.ai/docs/simple_proxy#managing-auth---virtual-keys"
            )
        if data is None:
            raise HTTPException(
                status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
                detail={"message": "Malformed request. No keys passed in."},
            )

        # Resolve key_aliases to tokens so we never pass token=None (unbounded query)
        tokens_to_query = list(data.keys) if data.keys else []
        if data.key_aliases:
            alias_rows = await VerificationTokenRepository(
                prisma_client
            ).table.find_many(
                where={"key_alias": {"in": data.key_aliases}},
                include={"litellm_budget_table": True},
            )
            alias_tokens = [row.token for row in alias_rows if row.token]
            tokens_to_query.extend(alias_tokens)

        if not tokens_to_query:
            return {"key": data.keys, "info": []}

        key_info = await prisma_client.get_data(
            token=tokens_to_query, table_name="key", query_type="find_all"
        )
        if not key_info:
            return {"key": data.keys, "info": []}

        filtered_key_info = []
        for k in key_info:
            if not await _can_user_query_key_info(
                user_api_key_dict=user_api_key_dict,
                key=k.token,
                key_info=k,
            ):
                continue
            try:
                k_dict = k.model_dump()
            except Exception:
                k_dict = k.dict()
            k_token_hash = k_dict.pop("token", None)

            model_max_budget = k_dict.get("model_max_budget") or {}
            budget_table = k_dict.get("litellm_budget_table") or {}
            if not model_max_budget and isinstance(budget_table, dict):
                model_max_budget = budget_table.get("model_max_budget") or {}
            if model_max_budget and k_token_hash:
                k_dict["model_max_budget_usage"] = await _build_model_max_budget_usage(
                    api_key_hash=k_token_hash,
                    model_max_budget=model_max_budget,
                    user_api_key_cache=user_api_key_cache,
                )

            filtered_key_info.append(k_dict)
        return {"key": data.keys, "info": filtered_key_info}

    except Exception as e:
        raise handle_exception_on_proxy(e)


@router.get(
    "/key/info", tags=["key management"], dependencies=[Depends(user_api_key_auth)]
)
@management_endpoint_wrapper
async def info_key_fn(
    key: Optional[str] = fastapi.Query(
        default=None, description="Key in the request parameters"
    ),
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
):
    """
    Retrieve information about a key.
    Parameters:
        key: Optional[str] = Query parameter representing the key in the request
        user_api_key_dict: UserAPIKeyAuth = Dependency representing the user's API key
    Returns:
        Dict containing the key and its associated information

    Example Curl:
    ```
    curl -X GET "http://0.0.0.0:4000/key/info?key=sk-test-example-key-123" \
-H "Authorization: Bearer sk-1234"
    ```

    Example Curl - if no key is passed, it will use the Key Passed in Authorization Header
    ```
    curl -X GET "http://0.0.0.0:4000/key/info" \
-H "Authorization: Bearer sk-test-example-key-123"
    ```
    """
    from litellm.proxy.proxy_server import prisma_client, user_api_key_cache

    try:
        if prisma_client is None:
            raise Exception(
                "Database not connected. Connect a database to your proxy - https://docs.litellm.ai/docs/simple_proxy#managing-auth---virtual-keys"
            )

        # default to using Auth token if no key is passed in
        key = key or user_api_key_dict.api_key
        hashed_key: Optional[str] = key
        if key is not None:
            hashed_key = _hash_token_if_needed(token=key)
        key_info = await VerificationTokenRepository(prisma_client).table.find_unique(
            where={"token": hashed_key},  # type: ignore
            include={"litellm_budget_table": True},
        )
        if key_info is None:
            raise ProxyException(
                message="Key not found in database",
                type=ProxyErrorTypes.not_found_error,
                param="key",
                code=status.HTTP_404_NOT_FOUND,
            )

        if (
            await _can_user_query_key_info(
                user_api_key_dict=user_api_key_dict,
                key=key,
                key_info=key_info,
            )
            is not True
        ):
            raise HTTPException(
                status_code=status.HTTP_403_FORBIDDEN,
                detail="You are not allowed to access this key's info. Your role={}".format(
                    user_api_key_dict.user_role
                ),
            )
        ## REMOVE HASHED TOKEN INFO BEFORE RETURNING ##
        try:
            key_info = key_info.model_dump()
        except Exception:
            # if using pydantic v1
            key_info = key_info.dict()
        key_token_hash = key_info.pop("token")

        model_max_budget = key_info.get("model_max_budget") or {}
        budget_table = key_info.get("litellm_budget_table") or {}
        if not model_max_budget and isinstance(budget_table, dict):
            model_max_budget = budget_table.get("model_max_budget") or {}
        if model_max_budget and key_token_hash:
            key_info["model_max_budget_usage"] = await _build_model_max_budget_usage(
                api_key_hash=key_token_hash,
                model_max_budget=model_max_budget,
                user_api_key_cache=user_api_key_cache,
            )

        # Attach object_permission if object_permission_id is set
        key_info = await attach_object_permission_to_dict(key_info, prisma_client)

        return {"key": key, "info": key_info}
    except Exception as e:
        raise handle_exception_on_proxy(e)


def _check_model_access_group(
    models: Optional[List[str]], llm_router: Optional[Router], premium_user: bool
) -> Literal[True]:
    """
    if is_model_access_group is True + is_wildcard_route is True, check if user is a premium user

    Return True if user is a premium user, False otherwise
    """
    if models is None or llm_router is None:
        return True

    for model in models:
        if llm_router._is_model_access_group_for_wildcard_route(
            model_access_group=model
        ):
            if not premium_user:
                raise HTTPException(
                    status_code=status.HTTP_403_FORBIDDEN,
                    detail={
                        "error": "Setting a model access group on a wildcard model is only available for LiteLLM Enterprise users.{}".format(
                            CommonProxyErrors.not_premium_user.value
                        )
                    },
                )

    return True


async def generate_key_helper_fn(
    request_type: Literal[
        "user", "key"
    ],  # identifies if this request is from /user/new or /key/generate
    duration: Optional[str] = None,
    models: list = [],
    aliases: dict = {},
    config: dict = {},
    spend: float = 0.0,
    key_max_budget: Optional[float] = None,  # key_max_budget is used to Budget Per key
    key_budget_duration: Optional[str] = None,
    budget_id: Optional[float] = None,  # budget id <-> LiteLLM_BudgetTable
    soft_budget: Optional[
        float
    ] = None,  # soft_budget is used to set soft Budgets Per user
    max_budget: Optional[float] = None,  # max_budget is used to Budget Per user
    blocked: Optional[bool] = None,
    budget_duration: Optional[str] = None,  # max_budget is used to Budget Per user
    token: Optional[str] = None,
    key: Optional[
        str
    ] = None,  # dev-friendly alt param for 'token'. Exposed on `/key/generate` for setting key value yourself.
    user_id: Optional[str] = None,
    user_alias: Optional[str] = None,
    team_id: Optional[str] = None,
    agent_id: Optional[str] = None,
    user_email: Optional[str] = None,
    user_role: Optional[str] = None,
    max_parallel_requests: Optional[int] = None,
    metadata: Optional[dict] = {},
    tpm_limit: Optional[int] = None,
    rpm_limit: Optional[int] = None,
    query_type: Literal["insert_data", "update_data"] = "insert_data",
    update_key_values: Optional[dict] = None,
    key_alias: Optional[str] = None,
    allowed_cache_controls: Optional[list] = [],
    permissions: Optional[dict] = {},
    model_max_budget: Optional[dict] = {},
    model_rpm_limit: Optional[dict] = None,
    model_tpm_limit: Optional[dict] = None,
    mcp_rpm_limit: Optional[dict] = None,
    guardrails: Optional[list] = None,
    policies: Optional[list] = None,
    prompts: Optional[list] = None,
    teams: Optional[list] = None,
    organization_id: Optional[str] = None,
    project_id: Optional[str] = None,
    table_name: Optional[Literal["key", "user"]] = None,
    send_invite_email: Optional[bool] = None,
    created_by: Optional[str] = None,
    updated_by: Optional[str] = None,
    allowed_routes: Optional[list] = None,
    sso_user_id: Optional[str] = None,
    object_permission_id: Optional[
        str
    ] = None,  # object_permission_id <-> LiteLLM_ObjectPermissionTable
    object_permission: Optional[LiteLLM_ObjectPermissionBase] = None,
    auto_rotate: Optional[bool] = None,
    rotation_interval: Optional[str] = None,
    router_settings: Optional[dict] = None,
    access_group_ids: Optional[list] = None,
    budget_limits: Optional[list] = None,  # multiple concurrent budget windows
):
    from litellm.proxy.proxy_server import premium_user, prisma_client

    if prisma_client is None:
        raise Exception(
            "Connect Proxy to database to generate keys - https://docs.litellm.ai/docs/proxy/virtual_keys "
        )

    if token is None:
        if key is not None:
            token = key
        else:
            token = f"sk-{secrets.token_urlsafe(LENGTH_OF_LITELLM_GENERATED_KEY)}"

    if duration is None:  # allow tokens that never expire
        expires = None
    else:
        # Add duration to current time for exact expiration (not standardized reset time)
        duration_seconds = duration_in_seconds(duration)
        expires = datetime.now(timezone.utc) + timedelta(seconds=duration_seconds)

    if key_budget_duration is None:  # one-time budget
        key_reset_at = None
    else:
        key_reset_at = get_budget_reset_time(budget_duration=key_budget_duration)

    if budget_duration is None:  # one-time budget
        reset_at = None
    else:
        reset_at = get_budget_reset_time(budget_duration=budget_duration)

    # Initialize reset_at for each budget window
    budget_limits_json: Optional[str] = None
    if budget_limits:
        initialized_windows = []
        for window in budget_limits:
            w = dict(window) if not isinstance(window, dict) else {**window}
            w["reset_at"] = get_budget_reset_time(
                budget_duration=w["budget_duration"]
            ).isoformat()
            initialized_windows.append(w)
        budget_limits_json = json.dumps(initialized_windows)

    aliases_json = json.dumps(aliases)
    config_json = json.dumps(config)
    permissions_json = json.dumps(permissions)
    router_settings_json = (
        safe_dumps(router_settings) if router_settings is not None else safe_dumps({})
    )

    # Add model_rpm_limit and model_tpm_limit to metadata
    if model_rpm_limit is not None:
        metadata = metadata or {}
        metadata["model_rpm_limit"] = model_rpm_limit
    if model_tpm_limit is not None:
        metadata = metadata or {}
        metadata["model_tpm_limit"] = model_tpm_limit
    if mcp_rpm_limit is not None:
        metadata = metadata or {}
        metadata["mcp_rpm_limit"] = mcp_rpm_limit
    if guardrails is not None:
        metadata = metadata or {}
        metadata["guardrails"] = guardrails
    if policies is not None:
        metadata = metadata or {}
        metadata["policies"] = policies
    if prompts is not None:
        metadata = metadata or {}
        metadata["prompts"] = prompts

    metadata = encrypt_callback_vars(metadata)
    metadata_json = json.dumps(metadata)
    validate_model_max_budget(model_max_budget)
    model_max_budget_json = json.dumps(model_max_budget)
    user_role = user_role
    tpm_limit = tpm_limit
    rpm_limit = rpm_limit
    allowed_cache_controls = allowed_cache_controls

    try:
        # Create a new verification token (you may want to enhance this logic based on your needs)

        user_data = {
            "max_budget": max_budget,
            "user_email": user_email,
            "user_id": user_id,
            "user_alias": user_alias,
            "team_id": team_id,
            "organization_id": organization_id,
            "user_role": user_role,
            "spend": spend,
            "models": models,
            "metadata": metadata_json,
            "max_parallel_requests": max_parallel_requests,
            "tpm_limit": tpm_limit,
            "rpm_limit": rpm_limit,
            "budget_duration": budget_duration,
            "budget_reset_at": reset_at,
            "allowed_cache_controls": allowed_cache_controls,
            "sso_user_id": sso_user_id,
            "object_permission_id": object_permission_id,
        }
        if teams is not None:
            user_data["teams"] = teams
        key_data = {
            "token": token,
            "key_alias": key_alias,
            "expires": expires,
            "models": models,
            "aliases": aliases_json,
            "config": config_json,
            "spend": spend,
            "max_budget": key_max_budget,
            "user_id": user_id,
            "team_id": team_id,
            "agent_id": agent_id,
            "project_id": project_id,
            "max_parallel_requests": max_parallel_requests,
            "metadata": metadata_json,
            "tpm_limit": tpm_limit,
            "rpm_limit": rpm_limit,
            "budget_duration": key_budget_duration,
            "budget_reset_at": key_reset_at,
            "allowed_cache_controls": allowed_cache_controls,
            "permissions": permissions_json,
            "model_max_budget": model_max_budget_json,
            "organization_id": organization_id,
            "budget_id": budget_id,
            "blocked": blocked,
            "budget_limits": budget_limits_json,
            "created_by": created_by,
            "updated_by": updated_by,
            "allowed_routes": allowed_routes or [],
            "object_permission_id": object_permission_id,
            "router_settings": router_settings_json,
            "access_group_ids": access_group_ids or [],
        }

        # Add rotation fields if auto_rotate is enabled
        _set_key_rotation_fields(
            data=key_data,
            auto_rotate=auto_rotate or False,
            rotation_interval=rotation_interval,
        )

        if (
            get_secret("DISABLE_KEY_NAME", False) is True
        ):  # allow user to disable storing abbreviated key name (shown in UI, to help figure out which key spent how much)
            pass
        else:
            key_data["key_name"] = abbreviate_api_key(api_key=token)
        saved_token = copy.deepcopy(key_data)
        if isinstance(saved_token["aliases"], str):
            saved_token["aliases"] = json.loads(saved_token["aliases"])
        if isinstance(saved_token["config"], str):
            saved_token["config"] = json.loads(saved_token["config"])
        if isinstance(saved_token["metadata"], str):
            saved_token["metadata"] = json.loads(saved_token["metadata"])
        if isinstance(saved_token["permissions"], str):
            if (
                "get_spend_routes" in saved_token["permissions"]
                and premium_user is not True
            ):
                raise ValueError(
                    "get_spend_routes permission is only available for LiteLLM Enterprise users"
                )

            saved_token["permissions"] = json.loads(saved_token["permissions"])
        if isinstance(saved_token["model_max_budget"], str):
            saved_token["model_max_budget"] = json.loads(
                saved_token["model_max_budget"]
            )
        router_settings = cast(Optional[dict], saved_token.get("router_settings"))
        if router_settings is not None and isinstance(router_settings, str):
            try:
                saved_token["router_settings"] = yaml.safe_load(router_settings)
            except yaml.YAMLError:
                # If it's not valid JSON/YAML, keep as is or set to empty dict
                saved_token["router_settings"] = {}

        if saved_token.get("expires", None) is not None and isinstance(
            saved_token["expires"], datetime
        ):
            saved_token["expires"] = saved_token["expires"].isoformat()
        if prisma_client is not None:
            if (
                table_name is None or table_name == "user"
            ):  # do not auto-create users for `/key/generate`
                ## CREATE USER (If necessary)
                if query_type == "insert_data":
                    user_row = await prisma_client.insert_data(
                        data=user_data, table_name="user"
                    )

                    if user_row is None:
                        raise Exception("Failed to create user")
                    ## use default user model list if no key-specific model list provided
                    if len(user_row.models) > 0 and len(key_data["models"]) == 0:  # type: ignore
                        key_data["models"] = user_row.models  # type: ignore
                elif query_type == "update_data":
                    user_row = await prisma_client.update_data(
                        data=user_data,
                        table_name="user",
                        update_key_values=update_key_values,
                    )
            if table_name is not None and table_name == "user":
                # do not create a key if table name is set to just 'user'
                # we only need to ensure this exists in the user table
                # the LiteLLM_VerificationToken table will increase in size if we don't do this check
                return user_data

            ## CREATE KEY
            verbose_proxy_logger.debug("prisma_client: Creating Key= %s", key_data)
            create_key_response = await prisma_client.insert_data(
                data=key_data, table_name="key"
            )

            key_data["token_id"] = getattr(create_key_response, "token", None)
            key_data["litellm_budget_table"] = getattr(
                create_key_response, "litellm_budget_table", None
            )
            key_data["created_at"] = getattr(create_key_response, "created_at", None)
            key_data["updated_at"] = getattr(create_key_response, "updated_at", None)

            # Deserialize router_settings from JSON string to dict for response
            router_settings_value = key_data.get("router_settings")
            if router_settings_value is not None and isinstance(
                router_settings_value, str
            ):
                try:
                    key_data["router_settings"] = yaml.safe_load(router_settings_value)
                except yaml.YAMLError:
                    # If it's not valid JSON/YAML, keep as is or set to empty dict
                    key_data["router_settings"] = {}
    except Exception as e:
        verbose_proxy_logger.error(
            "litellm.proxy.proxy_server.generate_key_helper_fn(): Exception occured - {}".format(
                str(e)
            )
        )
        verbose_proxy_logger.debug(traceback.format_exc())
        if isinstance(e, HTTPException):
            raise e
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail={"error": "Internal Server Error."},
        )

    # Add budget related info in key_data - this ensures it's returned
    key_data["budget_id"] = budget_id

    if request_type == "user":
        # if this is a /user/new request update the key_date with user_data fields
        key_data.update(user_data)

    return key_data


async def _team_key_deletion_check(
    user_api_key_dict: UserAPIKeyAuth,
    key_info: LiteLLM_VerificationToken,
    prisma_client: PrismaClient,
    user_api_key_cache: UserApiKeyCache,
):
    is_team_key = _is_team_key(data=key_info)

    if is_team_key and key_info.team_id is not None:
        team_table = await get_team_object(
            team_id=key_info.team_id,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )
        if (
            litellm.key_generation_settings is not None
            and "team_key_generation" in litellm.key_generation_settings
        ):
            _team_key_generation = litellm.key_generation_settings[
                "team_key_generation"
            ]
        else:
            _team_key_generation = TeamUIKeyGenerationConfig(
                allowed_team_member_roles=["admin", "user"],
            )
        # check if user is team admin
        if team_table is not None:
            return _team_key_operation_team_member_check(
                assigned_user_id=user_api_key_dict.user_id,
                team_table=team_table,
                user_api_key_dict=user_api_key_dict,
                team_key_generation=_team_key_generation,
                route=KeyManagementRoutes.KEY_DELETE,
            )
        else:
            raise HTTPException(
                status_code=status.HTTP_404_NOT_FOUND,
                detail={
                    "error": f"Team not found in db, and user not proxy admin. Team id = {key_info.team_id}"
                },
            )
    return False


async def can_modify_verification_token(
    key_info: LiteLLM_VerificationToken,
    user_api_key_cache: UserApiKeyCache,
    user_api_key_dict: UserAPIKeyAuth,
    prisma_client: PrismaClient,
) -> bool:
    """
    Check if user has permission to modify (delete/regenerate) a verification token.

    Rules:
    - Proxy admin can modify any key
    - Internal jobs service account can modify any key (for auto-rotation)
    - For team keys: only team admin or key owner can modify
    - For personal keys: only key owner can modify

    Args:
        key_info: The verification token to check
        user_api_key_cache: Cache for user API keys
        user_api_key_dict: The user making the request
        prisma_client: Prisma client for database access

    Returns:
        True if user can modify the key, False otherwise
    """
    from litellm.constants import LITELLM_INTERNAL_JOBS_SERVICE_ACCOUNT_NAME

    is_team_key = _is_team_key(data=key_info)

    # 1. Proxy admin can modify any key
    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return True

    # 2. Internal jobs service account can modify any key (for auto-rotation)
    if user_api_key_dict.api_key == LITELLM_INTERNAL_JOBS_SERVICE_ACCOUNT_NAME:
        return True

    # 3. For team keys: only team admin or key owner can modify
    if is_team_key and key_info.team_id is not None:
        # Get team object to check if user is team admin
        team_table = await get_team_object(
            team_id=key_info.team_id,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )

        if team_table is None:
            return False

        # Check if user is team admin
        if _is_user_team_admin(
            user_api_key_dict=user_api_key_dict,
            team_obj=team_table,
        ):
            return True

        # Check if the key belongs to the user (they own it)
        if (
            key_info.user_id is not None
            and key_info.user_id == user_api_key_dict.user_id
        ):
            return True

        # Not team admin and doesn't own the key
        return False

    # 4. For personal keys: only key owner can modify
    if key_info.user_id is not None and key_info.user_id == user_api_key_dict.user_id:
        return True

    # Default: deny
    return False


async def delete_verification_tokens(
    tokens: List,
    user_api_key_cache: UserApiKeyCache,
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str] = None,
) -> Tuple[Optional[Dict], List[LiteLLM_VerificationToken]]:
    """
    Helper that deletes the list of tokens from the database

    - check if user is proxy admin
    - check if user is team admin and key is a team key

    Args:
        tokens: List of tokens to delete
        user_id: Optional user_id to filter by

    Returns:
        Tuple[Optional[Dict], List[LiteLLM_VerificationToken]]:
            Optional[Dict]:
                - Number of deleted tokens
            List[LiteLLM_VerificationToken]:
                - List of keys being deleted, this contains information about the key_alias, token, and user_id being deleted,
                this is passed down to the KeyManagementEventHooks to delete the keys from the secret manager and handle audit logs
    """
    from litellm.proxy.proxy_server import prisma_client

    failed_tokens: List = []
    try:
        if prisma_client:
            tokens = [_hash_token_if_needed(token=key) for key in tokens]
            _keys_being_deleted: List[LiteLLM_VerificationToken] = (
                await VerificationTokenRepository(prisma_client).table.find_many(
                    where={"token": {"in": tokens}}
                )
            )

            if len(_keys_being_deleted) == 0:
                raise HTTPException(
                    status_code=status.HTTP_404_NOT_FOUND,
                    detail={"error": "No keys found"},
                )

            if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
                authorized_keys = _keys_being_deleted
            else:
                authorized_keys = []
                for key in _keys_being_deleted:
                    if await can_modify_verification_token(
                        key_info=key,
                        user_api_key_cache=user_api_key_cache,
                        user_api_key_dict=user_api_key_dict,
                        prisma_client=prisma_client,
                    ):
                        authorized_keys.append(key)
                    else:
                        raise HTTPException(
                            status_code=status.HTTP_403_FORBIDDEN,
                            detail={
                                "error": "You are not authorized to delete this key"
                            },
                        )
            await _persist_deleted_verification_tokens(
                keys=authorized_keys,
                prisma_client=prisma_client,
                user_api_key_dict=user_api_key_dict,
                litellm_changed_by=litellm_changed_by,
            )

            if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
                deleted_tokens = await prisma_client.delete_data(tokens=tokens)
                if deleted_tokens is not None and len(deleted_tokens) != len(tokens):
                    failed_tokens = [
                        token for token in tokens if token not in deleted_tokens
                    ]
            else:
                deletion_tasks = [
                    prisma_client.delete_data(tokens=[key.token])
                    for key in authorized_keys
                ]
                await asyncio.gather(*deletion_tasks)

                deleted_tokens = [key.token for key in authorized_keys]
                if len(deleted_tokens) != len(tokens):
                    failed_tokens = [
                        token for token in tokens if token not in deleted_tokens
                    ]
        else:
            raise Exception("DB not connected. prisma_client is None")
    except Exception as e:
        verbose_proxy_logger.exception(
            "litellm.proxy.proxy_server.delete_verification_tokens(): Exception occured - {}".format(
                str(e)
            )
        )
        verbose_proxy_logger.debug(traceback.format_exc())
        raise e

    for key in tokens:
        user_api_key_cache.delete_cache(key)
        # remove hash token from cache
        hashed_token = hash_token(cast(str, key))
        user_api_key_cache.delete_cache(hashed_token)

    return {
        "deleted_keys": deleted_tokens,
        "failed_tokens": failed_tokens,
    }, _keys_being_deleted


def _transform_verification_tokens_to_deleted_records(
    keys: List[LiteLLM_VerificationToken],
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str] = None,
) -> List[Dict[str, Any]]:
    """Transform verification tokens into deleted token records ready for persistence."""
    if not keys:
        return []

    deleted_at = datetime.now(timezone.utc)
    records = []
    for key in keys:
        key_payload = key.model_dump()
        deleted_record = LiteLLM_DeletedVerificationToken(
            **key_payload,
            deleted_at=deleted_at,
            deleted_by=user_api_key_dict.user_id,
            deleted_by_api_key=user_api_key_dict.api_key,
            litellm_changed_by=litellm_changed_by,
        )
        record = deleted_record.model_dump()

        # Map org_id to organization_id (model uses org_id, but schema expects organization_id)
        org_id_value = record.pop("org_id", None)
        if org_id_value is not None:
            record["organization_id"] = org_id_value

        for json_field in [
            "aliases",
            "config",
            "permissions",
            "metadata",
            "model_spend",
            "model_max_budget",
            "router_settings",
        ]:
            if json_field in record and record[json_field] is not None:
                record[json_field] = json.dumps(record[json_field])

        for rel_key in (
            "litellm_budget_table",
            "litellm_organization_table",
            "object_permission",
            "id",
            "budget_limits",
        ):
            record.pop(rel_key, None)

        records.append(record)

    return records


async def _save_deleted_verification_token_records(
    records: List[Dict[str, Any]],
    prisma_client: PrismaClient,
) -> None:
    """Save deleted verification token records to the database."""
    if not records:
        return
    await DeletedVerificationTokenRepository(prisma_client).table.create_many(
        data=records
    )


async def _persist_deleted_verification_tokens(
    keys: List[LiteLLM_VerificationToken],
    prisma_client: PrismaClient,
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str] = None,
) -> None:
    """Persist deleted verification token records by transforming and saving them."""
    records = _transform_verification_tokens_to_deleted_records(
        keys=keys,
        user_api_key_dict=user_api_key_dict,
        litellm_changed_by=litellm_changed_by,
    )
    await _save_deleted_verification_token_records(
        records=records,
        prisma_client=prisma_client,
    )


async def delete_key_aliases(
    key_aliases: List[str],
    user_api_key_cache: UserApiKeyCache,
    prisma_client: PrismaClient,
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str] = None,
) -> Tuple[Optional[Dict], List[LiteLLM_VerificationToken]]:
    _keys_being_deleted = await VerificationTokenRepository(
        prisma_client
    ).table.find_many(where={"key_alias": {"in": key_aliases}})

    tokens = [key.token for key in _keys_being_deleted]
    return await delete_verification_tokens(
        tokens=tokens,
        user_api_key_cache=user_api_key_cache,
        user_api_key_dict=user_api_key_dict,
        litellm_changed_by=litellm_changed_by,
    )


async def _rotate_master_key(
    prisma_client: PrismaClient,
    user_api_key_dict: UserAPIKeyAuth,
    current_master_key: str,
    new_master_key: str,
) -> None:
    """
    Rotate the master key

    1. Get the values from the DB
        - Get models from DB
        - Get config from DB
    2. Decrypt the values
        - ModelTable
            - [{"model_name": "str", "litellm_params": {}}]
        - ConfigTable
    3. Encrypt the values with the new master key
    4. Update the values in the DB
    """
    import prisma

    from litellm.proxy.proxy_server import proxy_config

    try:
        models: Optional[List] = await ModelRepository(prisma_client).table.find_many()
    except Exception:
        models = None
    # 2. process model table
    if models:
        decrypted_models = proxy_config.decrypt_model_list_from_db(new_models=models)
        verbose_proxy_logger.debug(
            "ABLE TO DECRYPT MODELS - len(decrypted_models): %s", len(decrypted_models)
        )
        new_models = []
        for model in decrypted_models:
            new_model = await _add_model_to_db(
                model_params=Deployment(**model),
                user_api_key_dict=user_api_key_dict,
                prisma_client=prisma_client,
                new_encryption_key=new_master_key,
                should_create_model_in_db=False,
            )
            if new_model:
                _dumped = new_model.model_dump(exclude_none=True)
                _dumped["litellm_params"] = prisma.Json(_dumped["litellm_params"])  # type: ignore[attr-defined]
                _dumped["model_info"] = prisma.Json(_dumped["model_info"])  # type: ignore[attr-defined]
                new_models.append(_dumped)
        verbose_proxy_logger.debug("Resetting proxy model table")
        async with prisma_client.db.tx() as tx:
            await tx.litellm_proxymodeltable.delete_many()
            verbose_proxy_logger.debug("Creating %s models", len(new_models))
            await tx.litellm_proxymodeltable.create_many(
                data=new_models,
            )
    # 3. process config table
    try:
        config = await ConfigRepository(prisma_client).table.find_many()
    except Exception:
        config = None

    if config:
        """If environment_variables is found, decrypt it and encrypt it with the new master key"""
        environment_variables_dict = {}
        for c in config:
            if c.param_name == "environment_variables":
                environment_variables_dict = c.param_value

        if environment_variables_dict:
            decrypted_env_vars = proxy_config._decrypt_and_set_db_env_variables(
                environment_variables=environment_variables_dict
            )
            encrypted_env_vars = proxy_config._encrypt_env_variables(
                environment_variables=decrypted_env_vars,
                new_encryption_key=new_master_key,
            )

            if encrypted_env_vars:
                await ConfigRepository(prisma_client).table.update(
                    where={"param_name": "environment_variables"},
                    data={"param_value": prisma.Json(encrypted_env_vars)},  # type: ignore[attr-defined]
                )

    # 4. process MCP server table
    try:
        await rotate_mcp_server_credentials_master_key(
            prisma_client=prisma_client,
            touched_by=user_api_key_dict.user_id or LITELLM_PROXY_ADMIN_NAME,
            new_master_key=new_master_key,
        )
    except Exception as e:
        verbose_proxy_logger.warning(
            "Failed to rotate MCP server credentials: %s", str(e)
        )

    # 4b. process MCP user-scoped credentials table (BYOK + OAuth2 tokens)
    try:
        await rotate_mcp_user_credentials_master_key(
            prisma_client=prisma_client,
            new_master_key=new_master_key,
        )
    except Exception as e:
        verbose_proxy_logger.warning(
            "Failed to rotate MCP user credentials: %s", str(e)
        )

    # 4c. process MCP per-user environment variables table
    try:
        await rotate_mcp_user_env_vars_master_key(
            prisma_client=prisma_client,
            new_master_key=new_master_key,
        )
    except Exception as e:
        verbose_proxy_logger.warning("Failed to rotate MCP user env vars: %s", str(e))

    # 5. process credentials table
    try:
        credentials = await CredentialsRepository(prisma_client).table.find_many()
    except Exception:
        credentials = None
    if credentials:
        from litellm.proxy.credential_endpoints.endpoints import update_db_credential

        for cred in credentials:
            try:
                decrypted_cred = proxy_config.decrypt_credentials(cred)
                encrypted_cred = update_db_credential(
                    db_credential=cred,
                    updated_patch=decrypted_cred,
                    new_encryption_key=new_master_key,
                )
                _cred_data = encrypted_cred.model_dump(exclude_none=True)
                if "credential_values" in _cred_data:
                    _cred_data["credential_values"] = prisma.Json(  # type: ignore[attr-defined]
                        _cred_data["credential_values"]
                    )
                if "credential_info" in _cred_data:
                    _cred_data["credential_info"] = prisma.Json(  # type: ignore[attr-defined]
                        _cred_data["credential_info"]
                    )
                await CredentialsRepository(prisma_client).table.update(
                    where={"credential_name": cred.credential_name},
                    data={
                        **_cred_data,
                        "updated_by": user_api_key_dict.user_id,
                    },
                )
            except Exception as e:
                verbose_proxy_logger.error(
                    f"Failed to re-encrypt credential {cred.credential_name}: {str(e)}"
                )
                # Continue with next credential instead of failing entire rotation
                continue
        verbose_proxy_logger.debug(
            f"Successfully re-encrypted {len(credentials)} credentials with new master key"
        )


async def get_new_token(data: Optional[RegenerateKeyRequest]) -> str:
    if data and data.new_key is not None:
        # Reject custom key values if disabled by admin
        await _check_custom_key_allowed(data.new_key)
        new_token = data.new_key
        if not data.new_key.startswith("sk-"):
            raise HTTPException(
                status_code=status.HTTP_400_BAD_REQUEST,
                detail={
                    "error": "New key must start with 'sk-'. This is to distinguish a key hash (used by litellm for logging / internal logic) from the actual key."
                },
            )
    else:
        new_token = f"sk-{secrets.token_urlsafe(LENGTH_OF_LITELLM_GENERATED_KEY)}"
    return new_token


async def _insert_deprecated_key(
    prisma_client: "PrismaClient",
    old_token_hash: str,
    new_token_hash: str,
    grace_period: Optional[str],
) -> None:
    """
    Insert old key into deprecated table so it remains valid during grace period.

    Uses upsert to handle concurrent rotations gracefully.

    Parameters:
        prisma_client: DB client
        old_token_hash: Hash of the old key being rotated out
        new_token_hash: Hash of the new replacement key
        grace_period: Duration string (e.g. "24h", "2d") or None/empty for immediate revoke
    """
    grace_period_value = grace_period or os.getenv(
        "LITELLM_KEY_ROTATION_GRACE_PERIOD", ""
    )
    if not grace_period_value:
        return

    try:
        grace_seconds = duration_in_seconds(grace_period_value)
    except ValueError:
        verbose_proxy_logger.warning(
            "Invalid grace_period format: %s. Expected format like '24h', '2d'.",
            grace_period_value,
        )
        return

    if grace_seconds <= 0:
        return

    try:
        revoke_at = datetime.now(timezone.utc) + timedelta(seconds=grace_seconds)
        await DeprecatedVerificationTokenRepository(prisma_client).table.upsert(
            where={"token": old_token_hash},
            data={
                "create": {
                    "token": old_token_hash,
                    "active_token_id": new_token_hash,
                    "revoke_at": revoke_at,
                },
                "update": {
                    "active_token_id": new_token_hash,
                    "revoke_at": revoke_at,
                },
            },
        )
        verbose_proxy_logger.debug(
            "Deprecated key retained for %s (revoke_at: %s)",
            grace_period_value,
            revoke_at,
        )
    except Exception as deprecated_err:
        verbose_proxy_logger.warning(
            "Failed to insert deprecated key for grace period: %s",
            deprecated_err,
        )


async def _execute_virtual_key_regeneration(
    *,
    prisma_client: PrismaClient,
    key_in_db: LiteLLM_VerificationToken,
    hashed_api_key: str,
    key: str,
    data: Optional[RegenerateKeyRequest],
    user_api_key_dict: UserAPIKeyAuth,
    litellm_changed_by: Optional[str],
    user_api_key_cache: UserApiKeyCache,
    proxy_logging_obj: ProxyLogging,
) -> GenerateKeyResponse:
    """Generate new token, update DB, invalidate cache, and return response."""
    from litellm.proxy.proxy_server import hash_token

    # Mirror the /key/update ownership rebind guard. See helper docstring.
    _validate_caller_can_change_key_ownership(
        data=data,
        existing_key_row=key_in_db,
        user_api_key_dict=user_api_key_dict,
    )

    # Apply the same membership rule used on /key/update: when the caller
    # asks to point the regenerated key at a different organization_id,
    # require they are a member of (or proxy admin over) the target org.
    if data is not None and data.organization_id is not None:
        _existing_org_id = getattr(key_in_db, "organization_id", None)
        _is_proxy_admin = (
            user_api_key_dict.user_role is not None
            and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
        )
        if data.organization_id != _existing_org_id and not _is_proxy_admin:
            await _validate_caller_can_assign_key_org(
                user_api_key_dict=user_api_key_dict,
                organization_id=data.organization_id,
                prisma_client=prisma_client,
            )

    new_token = await get_new_token(data=data)
    new_token_hash = hash_token(new_token)
    new_token_key_name = f"sk-...{new_token[-4:]}"
    update_data = {"token": new_token_hash, "key_name": new_token_key_name}

    non_default_values = {}
    if data is not None:
        # Enforce upperbound key params on regenerate (don't fill defaults)
        _enforce_upperbound_key_params(data, fill_defaults=False)
        non_default_values = await prepare_key_update_data(
            data=data, existing_key_row=key_in_db
        )
        # Only validate key_alias format if it's actually being changed
        new_key_alias = non_default_values.get("key_alias")
        if new_key_alias != key_in_db.key_alias:
            _validate_key_alias_format(key_alias=new_key_alias)
        verbose_proxy_logger.debug("non_default_values: %s", non_default_values)
    update_data.update(non_default_values)
    update_data = prisma_client.jsonify_object(data=update_data)

    # If grace period set, insert deprecated key so old key remains valid
    await _insert_deprecated_key(
        prisma_client=prisma_client,
        old_token_hash=hashed_api_key,
        new_token_hash=new_token_hash,
        grace_period=data.grace_period if data else None,
    )

    updated_token = await VerificationTokenRepository(prisma_client).table.update(
        where={"token": hashed_api_key},
        data=update_data,  # type: ignore
    )
    updated_token_dict = dict(updated_token) if updated_token is not None else {}
    updated_token_dict["key"] = new_token
    updated_token_dict["token_id"] = updated_token_dict.pop("token")

    if hashed_api_key or key:
        await _delete_cache_key_object(
            hashed_token=_hash_token_if_needed(key),
            user_api_key_cache=user_api_key_cache,
            proxy_logging_obj=proxy_logging_obj,
        )

    response = GenerateKeyResponse(**updated_token_dict)
    asyncio.create_task(
        KeyManagementEventHooks.async_key_rotated_hook(
            data=data,
            existing_key_row=key_in_db,
            response=response,
            user_api_key_dict=user_api_key_dict,
            litellm_changed_by=litellm_changed_by,
        )
    )
    return response


@router.post(
    "/key/{key:path}/regenerate",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
)
@router.post(
    "/key/regenerate",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
)
@management_endpoint_wrapper
async def regenerate_key_fn(
    key: Optional[str] = None,
    data: Optional[RegenerateKeyRequest] = None,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
) -> Optional[GenerateKeyResponse]:
    """
    Regenerate an existing API key while optionally updating its parameters.

    Parameters:
    - key: str (path parameter) - The key to regenerate
    - data: Optional[RegenerateKeyRequest] - Request body containing optional parameters to update
        - key: Optional[str] - The key to regenerate.
        - new_master_key: Optional[str] - The new master key to use, if key is the master key.
        - new_key: Optional[str] - The new key to use, if key is not the master key. If both set, new_master_key will be used.
        - key_alias: Optional[str] - User-friendly key alias
        - user_id: Optional[str] - User ID associated with key
        - team_id: Optional[str] - Team ID associated with key
        - models: Optional[list] - Model_name's a user is allowed to call
        - tags: Optional[List[str]] - Tags for organizing keys (Enterprise only)
        - spend: Optional[float] - Amount spent by key
        - max_budget: Optional[float] - Max budget for key
        - model_max_budget: Optional[Dict[str, BudgetConfig]] - Model-specific budgets {"gpt-4": {"budget_limit": 0.0005, "time_period": "30d"}}
        - budget_duration: Optional[str] - Budget reset period ("30d", "1h", etc.)
        - soft_budget: Optional[float] - Soft budget limit (warning vs. hard stop). Will trigger a slack alert when this soft budget is reached.
        - max_parallel_requests: Optional[int] - Rate limit for parallel requests
        - metadata: Optional[dict] - Metadata for key. Example {"team": "core-infra", "app": "app2"}
        - tpm_limit: Optional[int] - Tokens per minute limit
        - rpm_limit: Optional[int] - Requests per minute limit
        - model_rpm_limit: Optional[dict] - Model-specific RPM limits {"gpt-4": 100, "claude-v1": 200}
        - model_tpm_limit: Optional[dict] - Model-specific TPM limits {"gpt-4": 100000, "claude-v1": 200000}
        - allowed_cache_controls: Optional[list] - List of allowed cache control values
        - duration: Optional[str] - Key validity duration ("30d", "1h", etc.)
        - permissions: Optional[dict] - Key-specific permissions
        - guardrails: Optional[List[str]] - List of active guardrails for the key
        - blocked: Optional[bool] - Whether the key is blocked
        - grace_period: Optional[str] - Duration to keep old key valid after rotation (e.g. "24h", "2d"). Omitted = immediate revoke. Env: LITELLM_KEY_ROTATION_GRACE_PERIOD


    Returns:
    - GenerateKeyResponse containing the new key and its updated parameters

    Example:
    ```bash
    curl --location --request POST 'http://localhost:4000/key/sk-1234/regenerate' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data-raw '{
        "max_budget": 100,
        "metadata": {"team": "core-infra"},
        "models": ["gpt-4", "gpt-3.5-turbo"]
    }'
    ```

    Note: This is an Enterprise feature. It requires a premium license to use.
    """
    try:
        from litellm.proxy.proxy_server import (
            hash_token,
            master_key,
            premium_user,
            prisma_client,
            proxy_logging_obj,
            user_api_key_cache,
        )

        if data is not None:
            _check_allowed_routes_caller_permission(
                allowed_routes=data.allowed_routes,
                user_api_key_dict=user_api_key_dict,
            )
            _check_passthrough_routes_caller_permission(
                data=data,
                user_api_key_dict=user_api_key_dict,
            )
            # Mirror /key/generate's post-handle_key_type recheck so a
            # non-admin can't elevate via a key_type preset that the
            # regenerate flow would otherwise carry through unchecked.
            # The empty dict is intentional — `handle_key_type` is reused
            # purely as a side-effect-free lookup of the preset bucket, not
            # to mutate an existing `data_json`. Do not pass a real
            # `data_json` here; that path would write the derived routes
            # into the DB update payload and is owned by
            # `_common_key_generation_helper`.
            _check_allowed_routes_caller_permission(
                allowed_routes=handle_key_type(data, {}).get("allowed_routes"),
                user_api_key_dict=user_api_key_dict,
                allow_safe_presets=True,
            )

        # Premium-gate bypass for master-key rotation must verify the
        # caller actually holds the master key, not just that the request
        # body has a ``new_master_key`` field. A presence-only check let
        # any non-premium caller skip the enterprise gate by sending any
        # value in that field.
        regenerate_target_key = data.key if data and data.key else key
        is_master_key_regeneration = (
            data is not None
            and data.new_master_key is not None
            and _is_master_key(api_key=regenerate_target_key, _master_key=master_key)
        )

        if (
            premium_user is not True and not is_master_key_regeneration
        ):  # allow master key regeneration for non-premium users
            raise ValueError(
                f"Regenerating Virtual Keys is an Enterprise feature, {CommonProxyErrors.not_premium_user.value}"
            )

        # Check if key exists, raise exception if key is not in the DB
        key = data.key if data and data.key else key
        if not key:
            raise HTTPException(status_code=400, detail={"error": "No key passed in."})
        ### 1. Create New copy that is duplicate of existing key
        ######################################################################

        # create duplicate of existing key
        # set token = new token generated
        # insert new token in DB

        # create hash of token
        if prisma_client is None:
            raise HTTPException(
                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                detail={"error": "DB not connected. prisma_client is None"},
            )

        _is_master_key_valid = _is_master_key(api_key=key, _master_key=master_key)

        if master_key is not None and data and _is_master_key_valid:
            if data.new_master_key is None:
                raise HTTPException(
                    status_code=status.HTTP_400_BAD_REQUEST,
                    detail={"error": "New master key is required."},
                )
            await _rotate_master_key(
                prisma_client=prisma_client,
                user_api_key_dict=user_api_key_dict,
                current_master_key=master_key,
                new_master_key=data.new_master_key,
            )
            return GenerateKeyResponse(
                key=data.new_master_key,
                token=data.new_master_key,
                key_name=data.new_master_key,
                expires=None,
            )

        if "sk" not in key:
            hashed_api_key = key
        else:
            hashed_api_key = hash_token(key)

        _key_in_db = await VerificationTokenRepository(prisma_client).table.find_unique(
            where={"token": hashed_api_key},
        )
        if _key_in_db is None:
            raise HTTPException(
                status_code=status.HTTP_404_NOT_FOUND,
                detail={"error": f"Key {key} not found."},
            )

        # check if user has permission to regenerate key
        await TeamMemberPermissionChecks.can_team_member_execute_key_management_endpoint(
            user_api_key_dict=user_api_key_dict,
            route=KeyManagementRoutes.KEY_REGENERATE,
            prisma_client=prisma_client,
            existing_key_row=_key_in_db,
            user_api_key_cache=user_api_key_cache,
        )

        # check if user has ownership permission to regenerate key
        if not await can_modify_verification_token(
            key_info=_key_in_db,
            user_api_key_cache=user_api_key_cache,
            user_api_key_dict=user_api_key_dict,
            prisma_client=prisma_client,
        ):
            raise HTTPException(
                status_code=status.HTTP_403_FORBIDDEN,
                detail={"error": "You are not authorized to regenerate this key"},
            )

        # Gate access_group_ids on regenerate, same as /key/generate and
        # /key/update. Use the existing key's team since the body may omit it.
        if data is not None and data.access_group_ids:
            regenerate_team_table: Optional[LiteLLM_TeamTableCachedObj] = None
            if _key_in_db.team_id is not None:
                regenerate_team_table = await get_team_object(
                    team_id=_key_in_db.team_id,
                    prisma_client=prisma_client,
                    user_api_key_cache=user_api_key_cache,
                    check_db_only=True,
                )
            TeamMemberPermissionChecks.enforce_member_can_assign_access_groups(
                user_api_key_dict=user_api_key_dict,
                team_table=regenerate_team_table,
                access_group_ids=data.access_group_ids,
            )

        verbose_proxy_logger.info(
            "Key regeneration requested: key_alias=%s",
            getattr(_key_in_db, "key_alias", None),
        )
        verbose_proxy_logger.debug("key_in_db: %s", _key_in_db)

        # Normalize litellm_changed_by: if it's a Header object or not a string, convert to None
        if litellm_changed_by is not None and not isinstance(litellm_changed_by, str):
            litellm_changed_by = None

        # Save the old key record to deleted table before regeneration.
        # This preserves key_alias and team_id metadata for historical spend records.
        # If this fails, abort the regeneration to avoid permanently losing the
        # old hash→metadata mapping.
        await _persist_deleted_verification_tokens(
            keys=[_key_in_db],
            prisma_client=prisma_client,
            user_api_key_dict=user_api_key_dict,
            litellm_changed_by=litellm_changed_by,
        )

        return await _execute_virtual_key_regeneration(
            prisma_client=prisma_client,
            key_in_db=_key_in_db,
            hashed_api_key=hashed_api_key,
            key=key,
            data=data,
            user_api_key_dict=user_api_key_dict,
            litellm_changed_by=litellm_changed_by,
            user_api_key_cache=user_api_key_cache,
            proxy_logging_obj=proxy_logging_obj,
        )
    except Exception as e:
        verbose_proxy_logger.exception("Error regenerating key: %s", e)
        raise handle_exception_on_proxy(e)


async def _check_proxy_or_team_admin_for_key(
    key_in_db: LiteLLM_VerificationToken,
    user_api_key_dict: UserAPIKeyAuth,
    prisma_client: PrismaClient,
    user_api_key_cache: UserApiKeyCache,
) -> None:
    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return

    if key_in_db.team_id is not None:
        team_table = await get_team_object(
            team_id=key_in_db.team_id,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )
        if team_table is not None:
            if _is_user_team_admin(
                user_api_key_dict=user_api_key_dict,
                team_obj=team_table,
            ):
                return

    raise HTTPException(
        status_code=status.HTTP_403_FORBIDDEN,
        detail={"error": "You must be a proxy admin or team admin to reset key spend"},
    )


def _validate_reset_spend_value(
    reset_to: Any, key_in_db: LiteLLM_VerificationToken
) -> float:
    if not isinstance(reset_to, (int, float)):
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail={"error": "reset_to must be a float"},
        )

    reset_to = float(reset_to)

    if reset_to < 0:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail={"error": "reset_to must be >= 0"},
        )

    current_spend = key_in_db.spend or 0.0
    if reset_to > current_spend:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail={
                "error": f"reset_to ({reset_to}) must be <= current spend ({current_spend})"
            },
        )

    max_budget = key_in_db.max_budget
    if key_in_db.litellm_budget_table is not None:
        budget_max_budget = getattr(key_in_db.litellm_budget_table, "max_budget", None)
        if budget_max_budget is not None:
            if max_budget is None or budget_max_budget < max_budget:
                max_budget = budget_max_budget

    if max_budget is not None and reset_to > max_budget:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail={"error": f"reset_to ({reset_to}) must be <= budget ({max_budget})"},
        )

    return reset_to


@router.post(
    "/key/{key:path}/reset_spend",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
)
@management_endpoint_wrapper
async def reset_key_spend_fn(
    key: str,
    data: ResetSpendRequest,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
) -> Dict[str, Any]:
    try:
        from litellm.proxy.proxy_server import (
            hash_token,
            prisma_client,
            proxy_logging_obj,
            user_api_key_cache,
        )

        if prisma_client is None:
            raise HTTPException(
                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                detail={"error": "DB not connected. prisma_client is None"},
            )

        if "sk" not in key:
            hashed_api_key = key
        else:
            hashed_api_key = hash_token(key)

        _key_in_db = await VerificationTokenRepository(prisma_client).table.find_unique(
            where={"token": hashed_api_key},
            include={"litellm_budget_table": True},
        )
        if _key_in_db is None:
            raise HTTPException(
                status_code=status.HTTP_404_NOT_FOUND,
                detail={"error": f"Key {key} not found."},
            )

        current_spend = _key_in_db.spend or 0.0
        reset_to = _validate_reset_spend_value(data.reset_to, _key_in_db)

        await _check_proxy_or_team_admin_for_key(
            key_in_db=_key_in_db,
            user_api_key_dict=user_api_key_dict,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
        )

        updated_key = await VerificationTokenRepository(prisma_client).table.update(
            where={"token": hashed_api_key},
            data={"spend": reset_to},
        )

        if updated_key is None:
            raise HTTPException(
                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                detail={"error": "Failed to update key spend"},
            )

        await _delete_cache_key_object(
            hashed_token=hashed_api_key,
            user_api_key_cache=user_api_key_cache,
            proxy_logging_obj=proxy_logging_obj,
        )

        # Set Redis spend counter to the new value so get_current_spend()
        # returns the correct amount immediately instead of the stale pre-reset value.
        # We use reset_to (not 0.0) so partial resets are reflected correctly.
        from litellm.proxy.proxy_server import spend_counter_cache

        _counter_key = f"spend:key:{hashed_api_key}"
        spend_counter_cache.in_memory_cache.set_cache(
            key=_counter_key, value=reset_to, ttl=60
        )
        if spend_counter_cache.redis_cache is not None:
            try:
                await spend_counter_cache.redis_cache.async_set_cache(
                    key=_counter_key, value=reset_to, ttl=60
                )
            except Exception as redis_err:
                verbose_proxy_logger.warning(
                    "Failed to update spend counter %s in Redis: %s. "
                    "Budget checks may use stale value until counter expires.",
                    _counter_key,
                    redis_err,
                )

        max_budget = updated_key.max_budget
        budget_reset_at = updated_key.budget_reset_at

        return {
            "key_hash": hashed_api_key,
            "spend": reset_to,
            "previous_spend": current_spend,
            "max_budget": max_budget,
            "budget_reset_at": budget_reset_at,
        }
    except HTTPException:
        raise
    except Exception as e:
        verbose_proxy_logger.exception("Error resetting key spend: %s", e)
        raise handle_exception_on_proxy(e)


async def validate_key_list_check(
    user_api_key_dict: UserAPIKeyAuth,
    user_id: Optional[str],
    team_id: Optional[str],
    organization_id: Optional[str],
    key_alias: Optional[str],
    key_hash: Optional[str],
    prisma_client: PrismaClient,
) -> Optional[LiteLLM_UserTable]:
    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return None

    if user_api_key_dict.user_id is None:
        raise ProxyException(
            message="You are not authorized to access this endpoint. No 'user_id' is associated with your API key.",
            type=ProxyErrorTypes.bad_request_error,
            param="user_id",
            code=status.HTTP_403_FORBIDDEN,
        )
    complete_user_info_db_obj: Optional[BaseModel] = await UserRepository(
        prisma_client
    ).table.find_unique(
        where={"user_id": user_api_key_dict.user_id},
        include={"organization_memberships": True},
    )

    if complete_user_info_db_obj is None:
        raise ProxyException(
            message="You are not authorized to access this endpoint. No 'user_id' is associated with your API key.",
            type=ProxyErrorTypes.bad_request_error,
            param="user_id",
            code=status.HTTP_403_FORBIDDEN,
        )

    complete_user_info = LiteLLM_UserTable(**complete_user_info_db_obj.model_dump())

    # internal user can only see their own keys
    if user_id:
        if complete_user_info.user_id != user_id:
            raise ProxyException(
                message="You are not authorized to check another user's keys",
                type=ProxyErrorTypes.bad_request_error,
                param="user_id",
                code=status.HTTP_403_FORBIDDEN,
            )

    if team_id:
        if team_id not in complete_user_info.teams:
            raise ProxyException(
                message="You are not authorized to check this team's keys",
                type=ProxyErrorTypes.bad_request_error,
                param="team_id",
                code=status.HTTP_403_FORBIDDEN,
            )

    if organization_id:
        if (
            complete_user_info.organization_memberships is None
            or organization_id
            not in [
                membership.organization_id
                for membership in complete_user_info.organization_memberships
            ]
        ):
            raise ProxyException(
                message="You are not authorized to check this organization's keys",
                type=ProxyErrorTypes.bad_request_error,
                param="organization_id",
                code=status.HTTP_403_FORBIDDEN,
            )

    if key_hash:
        try:
            key_info = await VerificationTokenRepository(
                prisma_client
            ).table.find_unique(
                where={"token": key_hash},
            )
        except Exception:
            raise ProxyException(
                message="Key Hash not found.",
                type=ProxyErrorTypes.bad_request_error,
                param="key_hash",
                code=status.HTTP_403_FORBIDDEN,
            )
        can_user_query_key_info = await _can_user_query_key_info(
            user_api_key_dict=user_api_key_dict,
            key=key_hash,
            key_info=key_info,
        )
        if not can_user_query_key_info:
            raise HTTPException(
                status_code=status.HTTP_403_FORBIDDEN,
                detail="You are not allowed to access this key's info. Your role={}".format(
                    user_api_key_dict.user_role
                ),
            )
    return complete_user_info


async def _fetch_user_team_objects(
    complete_user_info: Optional[LiteLLM_UserTable],
    prisma_client: PrismaClient,
) -> List[LiteLLM_TeamTable]:
    """Fetch team objects for all teams a user belongs to (single DB query)."""
    if complete_user_info is None or not complete_user_info.teams:
        return []

    teams: Optional[List[BaseModel]] = await TeamRepository(
        prisma_client
    ).table.find_many(where={"team_id": {"in": complete_user_info.teams}})
    if teams is None:
        return []

    return [LiteLLM_TeamTable(**team.model_dump()) for team in teams]


def _get_admin_team_ids_from_objects(
    user_api_key_dict: UserAPIKeyAuth,
    team_objects: List[LiteLLM_TeamTable],
) -> List[str]:
    """Filter team objects to those where the user is an admin."""
    return [
        team.team_id
        for team in team_objects
        if _is_user_team_admin(user_api_key_dict=user_api_key_dict, team_obj=team)
    ]


def _get_team_ids_with_key_list_permission_from_objects(
    user_api_key_dict: UserAPIKeyAuth,
    team_objects: List[LiteLLM_TeamTable],
) -> List[str]:
    """Filter team objects to non-admin teams where the caller has /key/list
    permission via team_member_permissions. These teams should grant the
    caller full key visibility (same as a team admin), so other members'
    keys and service account keys (user_id=NULL) are returned."""
    return [
        team.team_id
        for team in team_objects
        if not _is_user_team_admin(user_api_key_dict=user_api_key_dict, team_obj=team)
        and _team_member_has_permission(
            user_api_key_dict=user_api_key_dict,
            team_obj=team,
            permission=KeyManagementRoutes.KEY_LIST.value,
        )
    ]


def _get_member_team_ids_from_objects(
    user_api_key_dict: UserAPIKeyAuth,
    team_objects: List[LiteLLM_TeamTable],
) -> List[str]:
    """Filter team objects to those where the user is a member (any role)."""
    return [
        team.team_id
        for team in team_objects
        if any(
            member.user_id is not None and member.user_id == user_api_key_dict.user_id
            for member in team.members_with_roles
        )
    ]


async def get_admin_team_ids(
    complete_user_info: Optional[LiteLLM_UserTable],
    user_api_key_dict: UserAPIKeyAuth,
    prisma_client: PrismaClient,
) -> List[str]:
    """Get all team IDs where the user is an admin."""
    team_objects = await _fetch_user_team_objects(complete_user_info, prisma_client)
    return _get_admin_team_ids_from_objects(user_api_key_dict, team_objects)


async def get_member_team_ids(
    complete_user_info: Optional[LiteLLM_UserTable],
    user_api_key_dict: UserAPIKeyAuth,
    prisma_client: PrismaClient,
) -> List[str]:
    """
    Get all team IDs where the user is a member (any role, including admin).

    Used to determine which teams' service accounts (keys with user_id=NULL)
    a regular team member can see.
    """
    team_objects = await _fetch_user_team_objects(complete_user_info, prisma_client)
    return _get_member_team_ids_from_objects(user_api_key_dict, team_objects)


@router.get(
    "/key/list",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
)
@management_endpoint_wrapper
async def list_keys(
    request: Request,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    page: int = Query(1, description="Page number", ge=1),
    size: int = Query(10, description="Page size", ge=1, le=100),
    user_id: Optional[str] = Query(
        None,
        description="Filter keys by user ID. Exact match by default; set substring_matching=true (admin only) for case-insensitive substring matching.",
    ),
    team_id: Optional[str] = Query(None, description="Filter keys by team ID"),
    organization_id: Optional[str] = Query(
        None, description="Filter keys by organization ID"
    ),
    key_hash: Optional[str] = Query(None, description="Filter keys by key hash"),
    key_alias: Optional[str] = Query(
        None,
        description="Filter keys by key alias. Exact match by default; set substring_matching=true (admin only) for case-insensitive substring matching.",
    ),
    return_full_object: bool = Query(False, description="Return full key object"),
    include_team_keys: bool = Query(
        False, description="Include all keys for teams that user is an admin of."
    ),
    include_created_by_keys: bool = Query(
        False, description="Include keys created by the user"
    ),
    sort_by: Optional[str] = Query(
        default=None,
        description="Column to sort by (e.g. 'user_id', 'created_at', 'spend')",
    ),
    sort_order: str = Query(default="desc", description="Sort order ('asc' or 'desc')"),
    expand: Optional[List[str]] = Query(
        None, description="Expand related objects (e.g. 'user')"
    ),
    status: Optional[str] = Query(
        None, description="Filter by status (e.g. 'deleted')"
    ),
    project_id: Optional[str] = Query(None, description="Filter keys by project ID"),
    access_group_id: Optional[str] = Query(
        None, description="Filter keys by access group ID"
    ),
    substring_matching: bool = Query(
        False,
        description="If true (proxy admins only), match user_id/key_alias as case-insensitive substrings instead of exact values. Defaults to false: /key/list matched these exactly before substring search was added, and an exact user_id/key_alias filter must never return another user's keys.",
    ),
) -> KeyListResponseObject:
    """
    List all keys for a given user / team / organization.

    Parameters:
        expand: Optional[List[str]] - Expand related objects (e.g. 'user' to include user information)
        status: Optional[str] - Filter by status. Currently supports "deleted" to query deleted keys.

    Returns:
        {
            "keys": List[str] or List[UserAPIKeyAuth],
            "total_count": int,
            "current_page": int,
            "total_pages": int,
        }

    When expand includes "user", each key object will include a "user" field with the associated user object.
    Note: When expand=user is specified, full key objects are returned regardless of the return_full_object parameter.
    """
    try:
        from litellm.proxy.proxy_server import prisma_client

        verbose_proxy_logger.debug("Entering list_keys function")

        if prisma_client is None:
            verbose_proxy_logger.error("Database not connected")
            raise Exception("Database not connected")

        # Validate status parameter
        if status is not None and status != "deleted":
            raise HTTPException(
                status_code=400,
                detail={
                    "error": "Invalid status value. Currently only 'deleted' is supported."
                },
            )

        complete_user_info = await validate_key_list_check(
            user_api_key_dict=user_api_key_dict,
            user_id=user_id,
            team_id=team_id,
            organization_id=organization_id,
            key_alias=key_alias,
            key_hash=key_hash,
            prisma_client=prisma_client,
        )

        # Fetch team objects once when needed for either admin or member filtering.
        # This avoids duplicate DB queries for the same team data.
        if include_team_keys or include_created_by_keys:
            team_objects = await _fetch_user_team_objects(
                complete_user_info=complete_user_info,
                prisma_client=prisma_client,
            )
            member_team_ids = _get_member_team_ids_from_objects(
                user_api_key_dict=user_api_key_dict,
                team_objects=team_objects,
            )
        else:
            team_objects = []
            member_team_ids = None

        if include_team_keys:
            admin_team_ids = _get_admin_team_ids_from_objects(
                user_api_key_dict=user_api_key_dict,
                team_objects=team_objects,
            )
            # Non-admin members with /key/list permission get full team-key
            # visibility for that team — matching the UI contract that
            # granting this permission lets them see all keys within the team.
            list_permission_team_ids = (
                _get_team_ids_with_key_list_permission_from_objects(
                    user_api_key_dict=user_api_key_dict,
                    team_objects=team_objects,
                )
            )
            if list_permission_team_ids:
                admin_team_ids = list({*admin_team_ids, *list_permission_team_ids})
        else:
            admin_team_ids = None

        is_proxy_admin = user_api_key_dict.user_role in [
            LitellmUserRoles.PROXY_ADMIN.value,
            LitellmUserRoles.PROXY_ADMIN_VIEW_ONLY.value,
        ]

        # Substring matching is opt-in (admin-only). /key/list matched user_id and
        # key_alias exactly before substring search was added; auto-applying a
        # substring match to every admin call broke that contract and let a caller
        # passing an exact user_id (e.g. an integration scoping to one user with an
        # admin key) receive other users' keys (user_id="alice" -> "alice2"). Exact
        # by default restores the prior behavior; the dashboard opts in explicitly.
        use_substring_matching = substring_matching and is_proxy_admin

        # Admins may omit user_id to list all keys; non-admins are scoped to self.
        if not user_id and not is_proxy_admin:
            user_id = user_api_key_dict.user_id

        response = await _list_key_helper(
            prisma_client=prisma_client,
            page=page,
            size=size,
            user_id=user_id,
            team_id=team_id,
            key_alias=key_alias,
            key_hash=key_hash,
            return_full_object=return_full_object,
            organization_id=organization_id,
            admin_team_ids=admin_team_ids,
            member_team_ids=member_team_ids,
            include_created_by_keys=include_created_by_keys,
            sort_by=sort_by,
            sort_order=sort_order,
            expand=expand,
            status=status,
            project_id=project_id,
            access_group_id=access_group_id,
            use_substring_matching=use_substring_matching,
        )

        verbose_proxy_logger.debug("Successfully prepared response")

        return response

    except Exception as e:
        verbose_proxy_logger.exception(f"Error in list_keys: {e}")
        if isinstance(e, HTTPException):
            raise ProxyException(
                message=getattr(e, "detail", f"error({str(e)})"),
                type=ProxyErrorTypes.internal_server_error,
                param=getattr(e, "param", "None"),
                code=getattr(
                    e, "status_code", fastapi.status.HTTP_500_INTERNAL_SERVER_ERROR
                ),
            )
        elif isinstance(e, ProxyException):
            raise e
        raise ProxyException(
            message="Authentication Error, " + str(e),
            type=ProxyErrorTypes.internal_server_error,
            param=getattr(e, "param", "None"),
            code=fastapi.status.HTTP_500_INTERNAL_SERVER_ERROR,
        )


async def _apply_non_admin_alias_scope(
    user_api_key_dict: UserAPIKeyAuth,
    prisma_client: Any,
    query_params: List[Any],
    where_parts: List[str],
) -> None:
    """Append SQL scope conditions so non-admin users only see aliases for
    keys they own or keys belonging to teams they are members of."""
    scope_conditions: List[str] = []
    if user_api_key_dict.user_id:
        query_params.append(user_api_key_dict.user_id)
        scope_conditions.append(f"user_id = ${len(query_params)}")

    # Look up the user's teams from the user table
    user_teams: List[str] = []
    if user_api_key_dict.user_id:
        user_row = await UserRepository(prisma_client).table.find_unique(
            where={"user_id": user_api_key_dict.user_id}
        )
        if user_row is not None:
            user_teams = getattr(user_row, "teams", []) or []

    if user_teams:
        team_placeholders = ", ".join(
            f"${len(query_params) + i + 1}" for i in range(len(user_teams))
        )
        query_params.extend(user_teams)
        scope_conditions.append(f"team_id IN ({team_placeholders})")

    if scope_conditions:
        where_parts.append(f"({' OR '.join(scope_conditions)})")
    else:
        # No user_id and no teams — return nothing
        where_parts.append("FALSE")


@router.get(
    "/key/aliases",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
)
@management_endpoint_wrapper
async def key_aliases(
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    page: int = Query(1, ge=1, description="Page number"),
    size: int = Query(50, ge=1, le=100, description="Page size"),
    search: Optional[str] = Query(
        None, description="Search key aliases (case-insensitive partial match)"
    ),
    team_id: Optional[str] = Query(
        None, description="Filter aliases to keys belonging to this team"
    ),
) -> Dict[str, Any]:
    """
    Lists key aliases with pagination and optional search.

    Non-admin users only see aliases for keys they own or keys belonging to
    their teams.

    Returns:
        {
            "aliases": List[str],
            "total_count": int,
            "current_page": int,
            "total_pages": int,
            "size": int,
        }
    """
    try:
        from litellm.proxy.proxy_server import prisma_client

        verbose_proxy_logger.debug("Entering key_aliases function")

        if prisma_client is None:
            verbose_proxy_logger.error("Database not connected")
            raise Exception("Database not connected")

        # Build a parameterized WHERE clause to avoid loading full rows into
        # memory. Raw SQL is used because the Prisma client wrapper does not
        # support column-level SELECT projection on find_many.
        #
        # $1 is always UI_SESSION_TOKEN_TEAM_ID (filters out UI session tokens).
        query_params: List[Any] = [UI_SESSION_TOKEN_TEAM_ID]
        where_parts = [
            "key_alias IS NOT NULL",
            "key_alias != ''",
            "(team_id IS NULL OR team_id != $1)",
        ]

        # Scope results for non-admin users: only show aliases for keys the
        # user owns or keys belonging to teams they are a member of.
        is_proxy_admin = user_api_key_dict.user_role in [
            LitellmUserRoles.PROXY_ADMIN.value,
            LitellmUserRoles.PROXY_ADMIN_VIEW_ONLY.value,
        ]
        if not is_proxy_admin:
            await _apply_non_admin_alias_scope(
                user_api_key_dict, prisma_client, query_params, where_parts
            )

        if search:
            query_params.append(f"%{search}%")
            where_parts.append(f"key_alias ILIKE ${len(query_params)}")

        if team_id:
            query_params.append(team_id)
            where_parts.append(f"team_id = ${len(query_params)}")

        where_sql = " AND ".join(where_parts)

        count_sql = f'SELECT COUNT(*) AS count FROM "LiteLLM_VerificationToken" WHERE {where_sql}'
        count_rows = await prisma_client.db.query_raw(count_sql, *query_params)
        total_count = int(count_rows[0]["count"]) if count_rows else 0

        aliases_params = query_params + [size, (page - 1) * size]
        limit_idx = len(aliases_params) - 1
        offset_idx = len(aliases_params)
        aliases_sql = (
            f"SELECT key_alias"
            f' FROM "LiteLLM_VerificationToken"'
            f" WHERE {where_sql}"
            f" ORDER BY key_alias ASC"
            f" LIMIT ${limit_idx} OFFSET ${offset_idx}"
        )
        alias_rows = await prisma_client.db.query_raw(aliases_sql, *aliases_params)
        aliases: List[str] = [
            row["key_alias"] for row in alias_rows if row.get("key_alias")
        ]

        total_pages = -(-total_count // size) if total_count > 0 else 0
        verbose_proxy_logger.debug(
            f"key_aliases: page={page}, size={size}, search={search!r}, "
            f"total_count={total_count}, total_pages={total_pages}"
        )

        return {
            "aliases": aliases,
            "total_count": total_count,
            "current_page": page,
            "total_pages": total_pages,
            "size": size,
        }

    except Exception as e:
        verbose_proxy_logger.exception(f"Error in key_aliases: {e}")
        if isinstance(e, HTTPException):
            raise ProxyException(
                message=getattr(e, "detail", f"error({str(e)})"),
                type=ProxyErrorTypes.internal_server_error,
                param=getattr(e, "param", "None"),
                code=getattr(e, "status_code", status.HTTP_500_INTERNAL_SERVER_ERROR),
            )
        elif isinstance(e, ProxyException):
            raise e
        raise ProxyException(
            message="Authentication Error, " + str(e),
            type=ProxyErrorTypes.internal_server_error,
            param=getattr(e, "param", "None"),
            code=status.HTTP_500_INTERNAL_SERVER_ERROR,
        )


def _validate_sort_params(
    sort_by: Optional[str], sort_order: str
) -> Optional[Dict[str, str]]:
    order_by: Dict[str, str] = {}

    if sort_by is None:
        return None
    # Validate sort_by is a valid column
    valid_columns = [
        "spend",
        "max_budget",
        "created_at",
        "updated_at",
        "token",
        "key_alias",
    ]
    if sort_by not in valid_columns:
        raise HTTPException(
            status_code=400,
            detail={
                "error": f"Invalid sort column. Must be one of: {', '.join(valid_columns)}"
            },
        )

    # Validate sort_order
    if sort_order.lower() not in ["asc", "desc"]:
        raise HTTPException(
            status_code=400,
            detail={"error": "Invalid sort order. Must be 'asc' or 'desc'"},
        )

    order_by[sort_by] = sort_order.lower()

    return order_by


def _build_key_filter_conditions(
    user_id: Optional[str],
    team_id: Optional[str],
    organization_id: Optional[str],
    key_alias: Optional[str],
    key_hash: Optional[str],
    exclude_team_id: Optional[str],
    admin_team_ids: Optional[List[str]],
    member_team_ids: Optional[List[str]] = None,
    include_created_by_keys: bool = False,
    project_id: Optional[str] = None,
    access_group_id: Optional[str] = None,
    use_substring_matching: bool = False,
) -> Dict[str, Union[str, Dict[str, Any], List[Dict[str, Any]]]]:
    """Build filter conditions for key listing.

    Visibility rules:
    - Users always see their own keys (user_id match)
    - Team admins see ALL keys for their admin teams (via admin_team_ids)
    - Regular team members see only service accounts (user_id=NULL) for their
      teams (via member_team_ids). This prevents leaking other members' spend data.
    - created_by visibility is scoped to teams the user currently belongs to,
      so former members cannot see service accounts they created after leaving.
    """
    # Prepare filter conditions
    where: Dict[str, Union[str, Dict[str, Any], List[Dict[str, Any]]]] = {}
    where.update(_get_condition_to_filter_out_ui_session_tokens())

    # Build the OR conditions for user's keys and admin team keys
    or_conditions: List[Dict[str, Any]] = []

    # Base conditions for user's own keys
    user_condition: Dict[str, Any] = {}
    if user_id and isinstance(user_id, str):
        if use_substring_matching:
            user_condition["user_id"] = {
                "contains": user_id,
                "mode": "insensitive",
            }
        else:
            user_condition["user_id"] = user_id
    if key_alias and isinstance(key_alias, str):
        if use_substring_matching:
            user_condition["key_alias"] = {
                "contains": key_alias,
                "mode": "insensitive",
            }
        else:
            user_condition["key_alias"] = key_alias
    if exclude_team_id and isinstance(exclude_team_id, str):
        user_condition["team_id"] = {"not": exclude_team_id}
    if organization_id and isinstance(organization_id, str):
        user_condition["organization_id"] = organization_id
    if key_hash and isinstance(key_hash, str):
        user_condition["token"] = key_hash

    if user_condition:
        or_conditions.append(user_condition)

    # Add condition for created_by keys, scoped to user's current teams
    if include_created_by_keys and user_id:
        if member_team_ids is not None:
            if member_team_ids:
                # Scope created_by keys to teams user is still a member of,
                # or keys that have no team (personal keys)
                or_conditions.append(
                    {
                        "AND": [
                            {"created_by": user_id},
                            {
                                "OR": [
                                    {"team_id": {"in": member_team_ids}},
                                    {"team_id": None},
                                ]
                            },
                        ]
                    }
                )
            else:
                # User is not a member of any team, only show non-team created_by keys
                or_conditions.append(
                    {"AND": [{"created_by": user_id}, {"team_id": None}]}
                )
        else:
            # No team membership info provided (backward compatibility for
            # direct _list_key_helper callers like Prometheus)
            or_conditions.append({"created_by": user_id})

    # Add condition for admin team keys (admins see ALL team keys)
    if admin_team_ids:
        or_conditions.append({"team_id": {"in": admin_team_ids}})

    # Add condition for member team service accounts (members only see keys with user_id=NULL)
    if member_team_ids:
        # Exclude teams where user is already admin (those are covered above with full visibility)
        member_only_team_ids = [
            tid for tid in member_team_ids if tid not in (admin_team_ids or [])
        ]
        if member_only_team_ids:
            or_conditions.append(
                {
                    "AND": [
                        {"team_id": {"in": member_only_team_ids}},
                        {"user_id": None},
                    ]
                }
            )

    # Combine conditions with OR if we have multiple conditions
    if len(or_conditions) > 1:
        where = {"AND": [where, {"OR": or_conditions}]}
    elif len(or_conditions) == 1:
        where.update(or_conditions[0])

    # Apply team_id, project_id and access_group_id as global AND filters so they
    # narrow results across all visibility conditions (own keys, team keys, etc.)
    if team_id and isinstance(team_id, str):
        where = {"AND": [where, {"team_id": team_id}]}
    if project_id:
        where = {"AND": [where, {"project_id": project_id}]}
    if access_group_id:
        where = {"AND": [where, {"access_group_ids": {"hasSome": [access_group_id]}}]}

    verbose_proxy_logger.debug(f"Filter conditions: {where}")
    return where


async def _list_key_helper(
    prisma_client: PrismaClient,
    page: int,
    size: int,
    user_id: Optional[str],
    team_id: Optional[str],
    organization_id: Optional[str],
    key_alias: Optional[str],
    key_hash: Optional[str],
    exclude_team_id: Optional[str] = None,
    return_full_object: bool = False,
    admin_team_ids: Optional[
        List[str]
    ] = None,  # New parameter for teams where user is admin
    member_team_ids: Optional[
        List[str]
    ] = None,  # Team IDs where user is a member (any role) - for service account visibility
    include_created_by_keys: bool = False,
    sort_by: Optional[str] = None,
    sort_order: str = "desc",
    expand: Optional[List[str]] = None,
    status: Optional[str] = None,
    project_id: Optional[str] = None,
    access_group_id: Optional[str] = None,
    use_substring_matching: bool = False,
) -> KeyListResponseObject:
    """
    Helper function to list keys
    Args:
        page: int
        size: int
        user_id: Optional[str]
        team_id: Optional[str]
        key_alias: Optional[str]
        exclude_team_id: Optional[str] # exclude a specific team_id
        return_full_object: bool # when true, will return UserAPIKeyAuth objects instead of just the token
        admin_team_ids: Optional[List[str]] # list of team IDs where the user is an admin
        member_team_ids: Optional[List[str]] # list of team IDs where user is a member (for service account visibility)

    Returns:
        KeyListResponseObject
        {
            "keys": List[str] or List[UserAPIKeyAuth],  # Updated to reflect possible return types
            "total_count": int,
            "current_page": int,
            "total_pages": int,
        }
    """
    where = _build_key_filter_conditions(
        user_id=user_id,
        team_id=team_id,
        organization_id=organization_id,
        key_alias=key_alias,
        key_hash=key_hash,
        exclude_team_id=exclude_team_id,
        admin_team_ids=admin_team_ids,
        member_team_ids=member_team_ids,
        include_created_by_keys=include_created_by_keys,
        project_id=project_id,
        access_group_id=access_group_id,
        use_substring_matching=use_substring_matching,
    )

    # Calculate skip for pagination
    skip = (page - 1) * size

    verbose_proxy_logger.debug(f"Pagination: skip={skip}, take={size}")

    order_by: Optional[Dict[str, str]] = (
        _validate_sort_params(sort_by, sort_order)
        if sort_by is not None and isinstance(sort_by, str)
        else None
    )

    # Determine which table to query based on status
    use_deleted_table = status == "deleted"

    # Fetch keys with pagination
    if use_deleted_table:
        keys = await DeletedVerificationTokenRepository(prisma_client).table.find_many(
            where=where,  # type: ignore
            skip=skip,  # type: ignore
            take=size,  # type: ignore
            order=(
                order_by
                if order_by
                else [
                    {"created_at": "desc"},
                    {"token": "desc"},  # fallback sort
                ]
            ),
        )
    else:
        keys = await VerificationTokenRepository(prisma_client).table.find_many(
            where=where,  # type: ignore
            skip=skip,  # type: ignore
            take=size,  # type: ignore
            order=(
                order_by
                if order_by
                else [
                    {"created_at": "desc"},
                    {"token": "desc"},  # fallback sort
                ]
            ),
            include={"object_permission": True},
        )

    verbose_proxy_logger.debug(f"Fetched {len(keys)} keys")

    # Get total count of keys
    if use_deleted_table:
        total_count = await DeletedVerificationTokenRepository(
            prisma_client
        ).table.count(
            where=where  # type: ignore
        )
    else:
        total_count = await VerificationTokenRepository(prisma_client).table.count(
            where=where  # type: ignore
        )

    verbose_proxy_logger.debug(f"Total count of keys: {total_count}")

    # Calculate total pages
    total_pages = -(-total_count // size)  # Ceiling division

    # Fetch user information if expand includes "user"
    user_map = {}
    if expand and "user" in expand:
        user_ids = [key.user_id for key in keys if key.user_id]
        created_by_ids = [key.created_by for key in keys if key.created_by]
        all_ids = list(set(user_ids + created_by_ids))  # Remove duplicates
        if all_ids:
            users = await UserRepository(prisma_client).table.find_many(
                where={"user_id": {"in": all_ids}}
            )
            user_map = {user.user_id: user for user in users}

    # Prepare response
    key_list: List[Union[str, UserAPIKeyAuth, LiteLLM_DeletedVerificationToken]] = []
    for key in keys:
        # Convert Prisma model to dict (supports both Pydantic v1 and v2)
        try:
            key_dict = key.model_dump()
        except Exception:
            # Fallback for Pydantic v1 compatibility
            key_dict = key.dict()
        # Attach object_permission if object_permission_id is set (only for non-deleted keys)
        if not use_deleted_table:
            key_dict = await attach_object_permission_to_dict(key_dict, prisma_client)

        # Include user information if expand includes "user"
        if expand and "user" in expand:
            if key.user_id and key.user_id in user_map:
                try:
                    key_dict["user"] = user_map[key.user_id].model_dump()
                except Exception:
                    key_dict["user"] = user_map[key.user_id].dict()
            if key.created_by and key.created_by in user_map:
                created_by_user = user_map[key.created_by]
                key_dict["created_by_user"] = {
                    "user_id": created_by_user.user_id,
                    "user_email": created_by_user.user_email,
                    "user_alias": created_by_user.user_alias,
                }

        if return_full_object is True or (expand and "user" in expand):
            if use_deleted_table:
                # Use deleted key type to preserve deleted_at, deleted_by, etc.
                key_list.append(LiteLLM_DeletedVerificationToken(**key_dict))
            else:
                key_list.append(UserAPIKeyAuth(**key_dict))  # Return full key object
        else:
            _token = key_dict.get("token")
            key_list.append(cast(str, _token))  # Return only the token

    return KeyListResponseObject(
        keys=key_list,
        total_count=total_count,
        current_page=page,
        total_pages=total_pages,
    )


def _get_condition_to_filter_out_ui_session_tokens() -> Dict[str, Any]:
    """
    Condition to filter out UI session tokens
    """
    return {
        "OR": [
            {"team_id": None},  # Include records where team_id is null
            {
                "team_id": {"not": UI_SESSION_TOKEN_TEAM_ID}
            },  # Include records where team_id != UI_SESSION_TOKEN_TEAM_ID
        ]
    }


async def _check_key_admin_access(
    user_api_key_dict: UserAPIKeyAuth,
    hashed_token: str,
    prisma_client: Any,
    user_api_key_cache: UserApiKeyCache,
    route: str,
) -> None:
    """
    Check that the caller has admin privileges for the target key.

    Allowed callers:
    - Proxy admin
    - Team admin for the key's team
    - Org admin for the key's team's organization

    Raises HTTPException(403) if the caller is not authorized.
    """

    if user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value:
        return

    # Look up the target key to find its team
    target_key_row = await VerificationTokenRepository(prisma_client).table.find_unique(
        where={"token": hashed_token}
    )
    if target_key_row is None:
        raise HTTPException(
            status_code=404,
            detail={"error": f"Key not found: {hashed_token}"},
        )

    # If the key belongs to a team, check team admin / org admin
    if target_key_row.team_id:
        team_obj = await get_team_object(
            team_id=target_key_row.team_id,
            prisma_client=prisma_client,
            user_api_key_cache=user_api_key_cache,
            check_db_only=True,
        )
        if team_obj is not None:
            if _is_user_team_admin(
                user_api_key_dict=user_api_key_dict, team_obj=team_obj
            ):
                return
            if await _is_user_org_admin_for_team(
                user_api_key_dict=user_api_key_dict, team_obj=team_obj
            ):
                return

    raise HTTPException(
        status_code=403,
        detail={
            "error": f"Only proxy admins, team admins, or org admins can call {route}. "
            f"user_role={user_api_key_dict.user_role}, user_id={user_api_key_dict.user_id}"
        },
    )


@router.post(
    "/key/block", tags=["key management"], dependencies=[Depends(user_api_key_auth)]
)
@management_endpoint_wrapper
async def block_key(
    data: BlockKeyRequest,
    http_request: Request,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
) -> Optional[LiteLLM_VerificationToken]:
    """
    Block an Virtual key from making any requests.

    Parameters:
    - key: str - The key to block. Can be either the unhashed key (sk-...) or the hashed key value

     Example:
    ```bash
    curl --location 'http://0.0.0.0:4000/key/block' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data '{
        "key": "sk-Fn8Ej39NxjAXrvpUGKghGw"
    }'
    ```

    Note: This is an admin-only endpoint. Only proxy admins, team admins, or org admins can block keys.
    """
    from litellm.proxy.management_helpers.audit_logs import (
        get_audit_log_changed_by,
    )
    from litellm.proxy.proxy_server import (
        create_audit_log_for_update,
        hash_token,
        litellm_proxy_admin_name,
        prisma_client,
        proxy_logging_obj,
        user_api_key_cache,
    )

    if prisma_client is None:
        raise Exception("{}".format(CommonProxyErrors.db_not_connected_error.value))

    if not is_valid_api_key(data.key):
        raise ProxyException(
            message="Invalid key format.",
            type=ProxyErrorTypes.bad_request_error,
            param="key",
            code=status.HTTP_400_BAD_REQUEST,
        )
    if data.key.startswith("sk-"):
        hashed_token = hash_token(token=data.key)
    else:
        hashed_token = data.key

    # Admin-only: only proxy admins, team admins, or org admins can block keys
    await _check_key_admin_access(
        user_api_key_dict=user_api_key_dict,
        hashed_token=hashed_token,
        prisma_client=prisma_client,
        user_api_key_cache=user_api_key_cache,
        route="/key/block",
    )

    # Check if the key exists before trying to block it
    existing_record = await VerificationTokenRepository(
        prisma_client
    ).table.find_unique(where={"token": hashed_token})
    if existing_record is None:
        raise ProxyException(
            message="Key not found.",
            type=ProxyErrorTypes.not_found_error,
            param="key",
            code=status.HTTP_404_NOT_FOUND,
        )

    if litellm.store_audit_logs is True:
        asyncio.create_task(
            create_audit_log_for_update(
                request_data=LiteLLM_AuditLogs(
                    id=str(uuid.uuid4()),
                    updated_at=datetime.now(timezone.utc),
                    changed_by=get_audit_log_changed_by(
                        litellm_changed_by=litellm_changed_by,
                        user_api_key_dict=user_api_key_dict,
                        litellm_proxy_admin_name=litellm_proxy_admin_name,
                    ),
                    changed_by_api_key=user_api_key_dict.api_key,
                    table_name=LitellmTableNames.KEY_TABLE_NAME,
                    object_id=hashed_token,
                    action="blocked",
                    updated_values="{}",
                    before_value=existing_record.model_dump_json(),
                )
            )
        )

    record = await VerificationTokenRepository(prisma_client).table.update(
        where={"token": hashed_token}, data={"blocked": True}  # type: ignore
    )

    ## UPDATE KEY CACHE - invalidate so next read re-fetches from DB
    await _delete_cache_key_object(
        hashed_token=hashed_token,
        user_api_key_cache=user_api_key_cache,
        proxy_logging_obj=proxy_logging_obj,
    )

    return record


@router.post(
    "/key/unblock", tags=["key management"], dependencies=[Depends(user_api_key_auth)]
)
@management_endpoint_wrapper
async def unblock_key(
    data: BlockKeyRequest,
    http_request: Request,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    litellm_changed_by: Optional[str] = Header(
        None,
        description="The litellm-changed-by header enables tracking of actions performed by authorized users on behalf of other users, providing an audit trail for accountability",
    ),
):
    """
    Unblock a Virtual key to allow it to make requests again.

    Parameters:
    - key: str - The key to unblock. Can be either the unhashed key (sk-...) or the hashed key value

    Example:
    ```bash
    curl --location 'http://0.0.0.0:4000/key/unblock' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data '{
        "key": "sk-Fn8Ej39NxjAXrvpUGKghGw"
    }'
    ```

    Note: This is an admin-only endpoint. Only proxy admins, team admins, or org admins can unblock keys.
    """
    from litellm.proxy.management_helpers.audit_logs import (
        get_audit_log_changed_by,
    )
    from litellm.proxy.proxy_server import (
        create_audit_log_for_update,
        hash_token,
        litellm_proxy_admin_name,
        prisma_client,
        proxy_logging_obj,
        user_api_key_cache,
    )

    if prisma_client is None:
        raise Exception("{}".format(CommonProxyErrors.db_not_connected_error.value))

    if not is_valid_api_key(data.key):
        raise ProxyException(
            message="Invalid key format.",
            type=ProxyErrorTypes.bad_request_error,
            param="key",
            code=status.HTTP_400_BAD_REQUEST,
        )
    if data.key.startswith("sk-"):
        hashed_token = hash_token(token=data.key)
    else:
        hashed_token = data.key

    # Admin-only: only proxy admins, team admins, or org admins can unblock keys
    await _check_key_admin_access(
        user_api_key_dict=user_api_key_dict,
        hashed_token=hashed_token,
        prisma_client=prisma_client,
        user_api_key_cache=user_api_key_cache,
        route="/key/unblock",
    )

    # Check if the key exists before trying to unblock it
    existing_record = await VerificationTokenRepository(
        prisma_client
    ).table.find_unique(where={"token": hashed_token})
    if existing_record is None:
        raise ProxyException(
            message="Key not found.",
            type=ProxyErrorTypes.not_found_error,
            param="key",
            code=status.HTTP_404_NOT_FOUND,
        )

    if litellm.store_audit_logs is True:
        asyncio.create_task(
            create_audit_log_for_update(
                request_data=LiteLLM_AuditLogs(
                    id=str(uuid.uuid4()),
                    updated_at=datetime.now(timezone.utc),
                    changed_by=get_audit_log_changed_by(
                        litellm_changed_by=litellm_changed_by,
                        user_api_key_dict=user_api_key_dict,
                        litellm_proxy_admin_name=litellm_proxy_admin_name,
                    ),
                    changed_by_api_key=user_api_key_dict.api_key,
                    table_name=LitellmTableNames.KEY_TABLE_NAME,
                    object_id=hashed_token,
                    action="unblocked",
                    updated_values="{}",
                    before_value=existing_record.model_dump_json(),
                )
            )
        )

    record = await VerificationTokenRepository(prisma_client).table.update(
        where={"token": hashed_token}, data={"blocked": False}  # type: ignore
    )

    ## UPDATE KEY CACHE - invalidate so next read re-fetches from DB
    await _delete_cache_key_object(
        hashed_token=hashed_token,
        user_api_key_cache=user_api_key_cache,
        proxy_logging_obj=proxy_logging_obj,
    )

    return record


@router.post(
    "/key/health",
    tags=["key management"],
    dependencies=[Depends(user_api_key_auth)],
    response_model=KeyHealthResponse,
)
@management_endpoint_wrapper
async def key_health(
    request: Request,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
):
    """
    Check the health of the key

    Checks:
    - If key based logging is configured correctly - sends a test log

    Usage 

    Pass the key in the request header

    ```bash
    curl -X POST "http://localhost:4000/key/health" \
     -H "Authorization: Bearer sk-1234" \
     -H "Content-Type: application/json"
    ```

    Response when logging callbacks are setup correctly:

    ```json
    {
      "key": "healthy",
      "logging_callbacks": {
        "callbacks": [
          "gcs_bucket"
        ],
        "status": "healthy",
        "details": "No logger exceptions triggered, system is healthy. Manually check if logs were sent to ['gcs_bucket']"
      }
    }
    ```


    Response when logging callbacks are not setup correctly:
    ```json
    {
      "key": "unhealthy",
      "logging_callbacks": {
        "callbacks": [
          "gcs_bucket"
        ],
        "status": "unhealthy",
        "details": "Logger exceptions triggered, system is unhealthy: Failed to load vertex credentials. Check to see if credentials containing partial/invalid information."
      }
    }
    ```
    """
    try:
        # Get the key's metadata
        key_metadata = user_api_key_dict.metadata

        health_status: KeyHealthResponse = KeyHealthResponse(
            key="healthy",
            logging_callbacks=None,
        )

        # Check if logging is configured in metadata
        if key_metadata and "logging" in key_metadata:
            logging_statuses = await test_key_logging(
                user_api_key_dict=user_api_key_dict,
                request=request,
                key_logging=decrypt_callback_vars(key_metadata)["logging"],
            )
            health_status["logging_callbacks"] = logging_statuses

            # Check if any logging callback is unhealthy
            if logging_statuses.get("status") == "unhealthy":
                health_status["key"] = "unhealthy"

        return KeyHealthResponse(**health_status)

    except Exception as e:
        raise ProxyException(
            message=f"Key health check failed: {str(e)}",
            type=ProxyErrorTypes.internal_server_error,
            param=getattr(e, "param", "None"),
            code=status.HTTP_500_INTERNAL_SERVER_ERROR,
        )


async def _can_user_query_key_info(
    user_api_key_dict: UserAPIKeyAuth,
    key: Optional[str],
    key_info: LiteLLM_VerificationToken,
) -> bool:
    """
    Helper to check if the user has access to the key's info
    """
    if (
        user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
        or user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN_VIEW_ONLY.value
    ):
        return True
    elif user_api_key_dict.api_key == key:
        return True
    # user can query their own key info
    elif key_info.user_id == user_api_key_dict.user_id:
        return True
    elif await TeamMemberPermissionChecks.user_belongs_to_keys_team(
        user_api_key_dict=user_api_key_dict,
        existing_key_row=key_info,
    ):
        return True
    return False


async def test_key_logging(
    user_api_key_dict: UserAPIKeyAuth,
    request: Request,
    key_logging: List[Dict[str, Any]],
) -> LoggingCallbackStatus:
    """
    Test the key-based logging

    - Test that key logging is correctly formatted and all args are passed correctly
    - Make a mock completion call -> user can check if it's correctly logged
    - Check if any logger.exceptions were triggered -> if they were then returns it to the user client side
    """
    import logging
    from io import StringIO

    from litellm.proxy.litellm_pre_call_utils import add_litellm_data_to_request
    from litellm.proxy.proxy_server import general_settings, proxy_config

    logging_callbacks: List[str] = []
    for callback in key_logging:
        if callback.get("callback_name") is not None:
            logging_callbacks.append(callback["callback_name"])
        else:
            raise ValueError("callback_name is required in key_logging")

    log_capture_string = StringIO()
    ch = logging.StreamHandler(log_capture_string)
    ch.setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.addHandler(ch)

    try:
        data = {
            "model": "openai/litellm-key-health-test",
            "messages": [
                {
                    "role": "user",
                    "content": "Hello, this is a test from litellm /key/health. No LLM API call was made for this",
                }
            ],
        }
        data = await add_litellm_data_to_request(
            data=data,
            user_api_key_dict=user_api_key_dict,
            proxy_config=proxy_config,
            general_settings=general_settings,
            request=request,
        )
        data["mock_response"] = "test response"
        await litellm.acompletion(
            **data
        )  # make mock completion call to trigger key based callbacks
    except Exception as e:
        return LoggingCallbackStatus(
            callbacks=logging_callbacks,
            status="unhealthy",
            details=f"Logging test failed: {str(e)}",
        )

    await asyncio.sleep(
        2
    )  # wait for callbacks to run, callbacks use batching so wait for the flush event

    # Check if any logger exceptions were triggered
    log_contents = log_capture_string.getvalue()
    logger.removeHandler(ch)
    if log_contents:
        return LoggingCallbackStatus(
            callbacks=logging_callbacks,
            status="unhealthy",
            details=f"Logger exceptions triggered, system is unhealthy: {log_contents}",
        )
    else:
        return LoggingCallbackStatus(
            callbacks=logging_callbacks,
            status="healthy",
            details=f"No logger exceptions triggered, system is healthy. Manually check if logs were sent to {logging_callbacks} ",
        )


_KEY_ALIAS_PATTERN = re.compile(r"^[a-zA-Z0-9][a-zA-Z0-9_\-/\.@]{0,253}[a-zA-Z0-9]$")


def _validate_key_alias_format(key_alias: Optional[str]) -> None:
    """
    Validate the format of the key_alias.

    Gated behind ``litellm.enable_key_alias_format_validation`` (default **False**).
    When disabled, no validation is performed so existing workflows are not broken.

    Rules (when enabled):
    - None is OK (no alias).
    - Otherwise must be 2–255 chars
    - start/end with alphanumeric
    - only allow a-zA-Z0-9_-/.@
    """
    if not litellm.enable_key_alias_format_validation:
        return

    if key_alias is None:
        return

    if not _KEY_ALIAS_PATTERN.match(key_alias):
        raise ProxyException(
            message="Invalid key_alias format. Must be 2-255 characters, start/end with alphanumeric, and only contain a-zA-Z0-9_-/.@.",
            type=ProxyErrorTypes.bad_request_error,
            param="key_alias",
            code=400,
        )


async def _enforce_unique_key_alias(
    key_alias: Optional[str],
    prisma_client: Any,
    existing_key_token: Optional[str] = None,
) -> None:
    """
    Helper to enforce unique key aliases across all keys.

    Args:
        key_alias (Optional[str]): The key alias to check
        prisma_client (Any): Prisma client instance
        existing_key_token (Optional[str]): ID of existing key being updated, to exclude from uniqueness check
            (The Admin UI passes key_alias, in all Edit key requests. So we need to be sure that if we find a key with the same alias, it's not the same key we're updating)

    Raises:
        ProxyException: If key alias already exists on a different key
    """
    if key_alias is not None and prisma_client is not None:
        where_clause: dict[str, Any] = {"key_alias": key_alias}
        if existing_key_token:
            # Exclude the current key from the uniqueness check
            where_clause["NOT"] = {"token": existing_key_token}

        existing_key = await VerificationTokenRepository(
            prisma_client
        ).table.find_first(where=where_clause)
        if existing_key is not None:
            raise ProxyException(
                message=f"Key with alias '{key_alias}' already exists. Unique key aliases across all keys are required.",
                type=ProxyErrorTypes.bad_request_error,
                param="key_alias",
                code=status.HTTP_400_BAD_REQUEST,
            )


def validate_model_max_budget(model_max_budget: Optional[Dict]) -> None:
    """
    Validate the model_max_budget is GenericBudgetConfigType + enforce user has an enterprise license

    Raises:
        Exception: If model_max_budget is not a valid GenericBudgetConfigType
    """
    try:
        if model_max_budget is None:
            return
        if len(model_max_budget) == 0:
            return
        if model_max_budget is not None:
            from litellm.proxy.proxy_server import CommonProxyErrors, premium_user

            if premium_user is not True:
                raise ValueError(
                    f"You must have an enterprise license to set model_max_budget. {CommonProxyErrors.not_premium_user.value}"
                )
            for _model, _budget_info in model_max_budget.items():
                assert isinstance(_model, str)

                # Normalize to dict (Pydantic may already parse nested values as BudgetConfig)
                _info = (
                    _budget_info.model_dump()
                    if hasattr(_budget_info, "model_dump")
                    else dict(_budget_info)
                )
                # /CRUD endpoints can pass budget_limit as a string, so we need to convert it to a float
                if "budget_limit" in _info:
                    _info["budget_limit"] = float(_info["budget_limit"])
                BudgetConfig(**_info)
    except Exception as e:
        raise ValueError(
            f"Invalid model_max_budget: {str(e)}. Example of valid model_max_budget: https://docs.litellm.ai/docs/proxy/users"
        )
