MailerCheck MCP by usefulapi for ChatGPT

io.usefulapi/mailercheck

Check MailerCheck credits and lists, and run confirmed asynchronous email verification.

client:ChatGPT transport:streamable-http tools:6

Install MailerCheck MCP by usefulapi in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mailercheck.usefulapi.io/mcp

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