Mailpro for ChatGPT

com.mailpro/mailpro

Email and SMS marketing from your AI assistant: contacts, campaigns, stats, sends with approval.

client:ChatGPT transport:streamable-http

Install Mailpro in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.mailpro.com/mcp

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