Comfy-Org/ComfyUI · error · Exception

Unauthorized: Please login first to use this node.

Error message

Unauthorized: Please login first to use this node.

What it means

Error "Unauthorized: Please login first to use this node." thrown in Comfy-Org/ComfyUI.

Source

Thrown at comfy_api_nodes/util/client.py:823

                        request_method=method,
                        request_url=url,
                        response_status_code=resp.status,
                        response_headers=dict(resp.headers),
                        response_content=body,
                        error_message=msg,
                    )
                    raise Exception(msg)

                if expect_binary:
                    buff = bytearray()

View on GitHub (pinned to 1c6d8d45b3)

Solutions

1. Log in to your Comfy account and try again.

When it happens

Trigger: Thrown at comfy_api_nodes/util/client.py:823 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 Comfy-Org/ComfyUI@1c6d8d45b3 (2026-08-14). Data as JSON: /api/errors/60d11a9f3511f5ad. Report an issue: GitHub.