Vetto for ChatGPT

io.github.yasaiiko/vetto

Check signup emails for disposable or dead domains, typos and Gmail aliases; block fake signups.

client:ChatGPT transport:streamable-http tools:4

Install Vetto in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://usevetto.com/mcp

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