Chesly for ChatGPT
app.chesly/chesly
Read, search and answer your messages on WhatsApp, iMessage, Slack, Telegram and 14 more networks.
client:ChatGPT
transport:streamable-http
Install Chesly in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.chesly.app/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs