ERR_NGROK_635: API access requires that the owner of the API key has write privileges

What does ERR_NGROK_635 mean?

ngrok returns ERR_NGROK_635 with this message:

API access requires that the owner of the API key has write privileges.

Troubleshoot ERR_NGROK_635 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

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