LookupLab for ChatGPT

io.github.ppineapple/lookuplab

Phone carrier, email domain, IP network and DNS checks using your LookupLab account.

client:ChatGPT transport:streamable-http tools:4

Install LookupLab in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://lookuplab.io/api/mcp

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