OrbitFour for ChatGPT

com.orbitfour/domains

Check domain availability and live registry pricing, or search for available names.

client:ChatGPT transport:streamable-http tools:4

Install OrbitFour in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.orbitfour.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs