Sending for ChatGPT

dev.sending/mcp

Email, WhatsApp and Telegram for AI agents: send, campaigns, automations, contacts, agent inboxes.

client:ChatGPT transport:streamable-http

Install Sending in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://sending.dev/api/mcp

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