emailmd for ChatGPT

dev.emailmd/emailmd

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

client:ChatGPT transport:streamable-http runtime:npm tools:3

Install emailmd in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.emailmd.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