Mailnaptic for ChatGPT

com.mailnaptic/mailnaptic

Read Mailnaptic campaigns, lists, contacts and results and draft campaigns. Sending needs your OK.

client:ChatGPT transport:streamable-http

Install Mailnaptic in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.mailnaptic.com/mcp

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