"Overview of Command Line Interface Usage" matching MCP connectors:

Unlock the power of DNS lookups with our DNS Lookup service using Google DNS-over-HTTPS. Whether

Scan the open TCP ports of your own public IP. Fast (32) or deep (65535). No key, no signup.

IPInfo MCP — wraps ipinfo.io (free tier, no auth required for basic usage)

IP Lookup MCP — ip-api.com (free, no auth for basic usage)

Provides capabilities that let LLM agents perform a range of infrastructure management tasks.