ERR_NGROK_3107: The state parameter used to validate your request is missing

What does ERR_NGROK_3107 mean?

ngrok returns ERR_NGROK_3107 with this message:

The state parameter used to validate your request is missing.

Close this page and try again.

Troubleshoot ERR_NGROK_3107 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.