NUM for ChatGPT

com.itsnum/num

Real places for your agent. Search 2.5M+ travel places; submit a business for human review.

client:ChatGPT transport:streamable-http tools:5

Install NUM in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://itsnum.com/mcp

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