ERR_NGROK_637: This credential cannot be deleted because it is the default authtoken tied to EMAIL - ngrok documentation

What does ERR_NGROK_637 mean?

ngrok returns ERR_NGROK_637 with this message:

This credential cannot be deleted because it is the default authtoken tied to <EMAIL>. Removing the user from this account will also delete any associated tokens.

Credential ID: <ID>
Description: <DESCRIPTION>

Troubleshoot ERR_NGROK_637 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_637?

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