xtekky/gpt4free · error · RuntimeError

No authorization code received

Error message

No authorization code received

What it means

The OAuth callback DID arrive, but its query string contained no 'code' parameter. Google redirects back with code only on successful consent; on failure it appends error=access_denied instead, so this usually means the user cancelled the consent screen or Google rejected the request before issuing a code.

Source

Thrown at g4f/Provider/needs_auth/Antigravity.py:862

                print("You may need to close any application using that port.\n")

            print(f"\nPlease open this URL in your browser:\n")
            print(f"{auth_url}\n")

        if server_started:
            print("Waiting for authentication callback...")

            try:
                callback_result = callback_server.wait_for_callback()

                if not callback_result:
                    raise RuntimeError("OAuth callback timed out")

                code = callback_result.get("code")
                callback_state = callback_result.get("state")

                if not code:
                    raise RuntimeError("No authorization code received")

                print("\n✓ Authorization code received. Exchanging for tokens...")

                # Exchange code for tokens
                tokens = await cls.exchange_code_for_tokens(
                    code, callback_state or state
                )

                print(f"✓ Authentication successful!")
                if tokens.get("email"):
                    print(f"  Logged in as: {tokens['email']}")
                if tokens.get("project_id"):
                    print(f"  Project ID: {tokens['project_id']}")

                return tokens

            finally:
                callback_server.stop()

View on GitHub (pinned to 973504e177)

Solutions

1. Re-run login and click 'Allow' on the Google consent screen.
2. If consent cannot be granted, the Google account/org is blocking the app — use an eligible account (see error 106).
3. Check the callback URL logged by the local server for an error= parameter and address that specific OAuth error.

def callback_has_code(callback_result: dict) -> bool:
    return bool(callback_result and callback_result.get("code"))

def is_successful_callback(cb: object) -> bool:
    """True when the OAuth callback dict carries an authorization code."""
    return isinstance(cb, dict) and isinstance(cb.get("code"), str) and len(cb["code"]) > 0

try:
    tokens = await Antigravity.login()
except RuntimeError as e:
    if "No authorization code received" in str(e):
        # inspect callback URL for error=access_denied; guide user to click Allow
        raise

When it happens

Trigger: Callback URL like http://localhost:PORT/callback?state=... without code — e.g. ?error=access_denied. Also occurs when a proxy or browser security tool strips query parameters from the redirect.

Common situations: User clicked 'Cancel'/'Deny' on the Google consent page; Workspace policy auto-denies unapproved third-party OAuth apps; query params mangled by a redirecting SSO front-end.

Related errors

• OAuth error: {OAuthCallbackHandler.callback_error}
• OAuth callback timed out
• Failed to read OAuth credentials from {path}: {e}
• No refresh token found in credentials.
• Token refresh failed: {text}

AI-assisted analysis of xtekky/gpt4free@973504e177 (2026-08-14). Data as JSON: /api/errors/ded9787811335b88. Report an issue: GitHub.