NUM Travel eSIM for ChatGPT

com.itsnum/esim

Find data eSIM plans for 190+ destinations. The person verifies and pays in NUM.

client:ChatGPT transport:streamable-http tools:3

Install NUM Travel eSIM in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://app.itsnum.com/api/esim/mcp

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