ERR_NGROK_18003: The provided cloud endpoint configuration is invalid: port is invalid or missing and cannot be inferred from scheme - ngrok documentation

What does ERR_NGROK_18003 mean?

ngrok returns ERR_NGROK_18003 with this message:

The provided cloud endpoint configuration is invalid: port is invalid or missing and cannot be inferred from scheme

Troubleshoot ERR_NGROK_18003 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_18003?

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