Banger for ChatGPT
com.bangermail/banger
All your company email, operated by agents and reviewed by you.
client:ChatGPT
transport:streamable-http
Install Banger in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://api.bangermail.com/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs