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fix(mcp): allow None user_api_key_auth in MCPAuthenticatedUser

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The set_auth_context / _set_or_update_auth_context / _update_auth_context
helpers in server.py all accept Optional[UserAPIKeyAuth] and pass it
straight into MCPAuthenticatedUser, but the dataclass-style constructor
typed user_api_key_auth as required UserAPIKeyAuth. Mypy flagged this on
the stateful-routing branch:

  server.py:3227: error: Incompatible types in assignment (expression
    has type "UserAPIKeyAuth | None", variable has type "UserAPIKeyAuth")
  server.py:3255: error: Argument "user_api_key_auth" to
    "MCPAuthenticatedUser" has incompatible type "UserAPIKeyAuth | None";
    expected "UserAPIKeyAuth"

Widen the parameter type to Optional[UserAPIKeyAuth] to match the call
sites. Runtime behavior is unchanged.

Co-authored-by: Mateo Wang <mateo-berri@users.noreply.github.com>
This commit is contained in:
Cursor Agent 2026-05-05 22:54:56 +00:00
parent 3717a58467
commit 79580aae54
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1 changed files with 1 additions and 1 deletions
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2
litellm/proxy/_experimental/mcp_server/auth/litellm_auth_handler.py
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@ -20,7 +20,7 @@ class MCPAuthenticatedUser(AuthenticatedUser):
def __init__(
self,
user_api_key_auth: UserAPIKeyAuth,
user_api_key_auth: Optional[UserAPIKeyAuth],
mcp_auth_header: Optional[str] = None,
mcp_servers: Optional[List[str]] = None,
mcp_server_auth_headers: Optional[Dict[str, Dict[str, str]]] = None,