Email Verification MCP for ChatGPT

io.github.foundrynet/email-verify-mcp

Verify emails — deliverability, disposable/role/free detection, MX validity, domain age.

client:ChatGPT transport:streamable-http

Install Email Verification MCP in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://email-verify-mcp-production.up.railway.app/mcp

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