ERR_NGROK_5527: PROVIDER rejected the final step of authorization due to invalid credentials - ngrok documentation

What does ERR_NGROK_5527 mean?

ngrok returns ERR_NGROK_5527 with this message:

<PROVIDER> rejected the final step of authorization due to invalid credentials.

The owner of this application should verify the OAuth application client ID and secret are valid before you can continue.

Troubleshoot ERR_NGROK_5527 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Where can I get more help with ERR_NGROK_5527?

Email support@ngrok.com and include the error code.