langchain-ai/langgraph · error · PermissionError

No authenticated user available in access_context='{self.acc

Error message

No authenticated user available in access_context='{self.access_context}'. Ensure custom auth is configured for the server.

What it means

Error "No authenticated user available in access_context='{self.access_context}'. Ensure custom auth is configured for the server." thrown in langchain-ai/langgraph.

Source

Thrown at libs/sdk-py/langgraph_sdk/runtime.py:141

        ```
        """
        if isinstance(self, _ExecutionRuntime):
            return self
        return None

    def ensure_user(self) -> BaseUser:
        """Return the authenticated user, or raise if not available.

        When custom auth is configured, `user` is set for all access contexts
        (the factory is only called from HTTP handlers where the auth
        middleware has already run). This method raises only when no custom
        auth is configured.

        Raises:
            PermissionError: If no user is authenticated.
        """
        if self.user is None:
            raise PermissionError(
                f"No authenticated user available in access_context='{self.access_context}'. "
                "Ensure custom auth is configured for the server."
            )
        return self.user


@dataclass(kw_only=True, slots=True, frozen=True)
class _ExecutionRuntime(_ServerRuntimeBase[ContextT], Generic[ContextT]):
    """Runtime for `threads.create_run` — the graph will be fully executed.

    Access this via `.execution_runtime` on `ServerRuntime`. Do not
    construct directly.

    !!! warning "Beta"
        This API is in beta and may change in future releases.
    """

    context: ContextT = field(default=None)  # ty: ignore[invalid-assignment]

View on GitHub (pinned to 38031739e5)

When it happens

Trigger: Thrown at libs/sdk-py/langgraph_sdk/runtime.py:141 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Authentication and authorization failures — expired tokens, bad credentials, and missing scopes.

AI-assisted analysis of langchain-ai/langgraph@38031739e5 (2026-08-26). Data as JSON: /api/errors/d974cb8083281062. Report an issue: GitHub.