ERR_NGROK_7191: The JWT Validation signing key identification token claim CLAIM must be unique - ngrok documentation

What does ERR_NGROK_7191 mean?

ngrok returns ERR_NGROK_7191 with this message:

The JWT Validation signing key identification token claim <CLAIM> must be unique. Make sure to include it only once in the token claim list.

Troubleshoot ERR_NGROK_7191 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_7191?

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