Eusend for ChatGPT

dev.eusend/eusend

Send transactional email and manage domains, audiences, and broadcasts from any MCP client.

client:ChatGPT transport:streamable-http runtime:npm

Install Eusend in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.eusend.dev/mcp

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