Resend's official MCP server lets agents send transactional email and work with contacts, audiences, broadcasts and domains in Resend. A hosted remote server is available with OAuth sign-in or an API key as a bearer token, and the same open-source code runs locally via npx with RESEND_API_KEY. Local file attachments can be restricted to chosen directories.
Also available as
Connect
- 1Connect it in ChatGPT
Turn on Developer mode in ChatGPT (Settings → Security and login), open Plugins, select + and paste https://mcp.resend.com/mcp as the MCP server URL, then sign in with OAuth. Add it to a chat from the composer's tools menu.
- 2Or add it to Codex or the API
codex mcp add resend --url https://mcp.resend.com/mcp codex mcp login resendThe login command opens a browser to finish OAuth.
Configs are generated from the publisher's documented endpoint. Check their docs for plan requirements and scopes. New to this? Read the step-by-step tutorial.
Things to ask
- “Send a test email from hello@mydomain.com to me with the subject 'Deploy finished'”
- “Add these five addresses to the Newsletter audience”
- “Is my domain fully verified for sending?”
- “Create a broadcast announcing the new feature to all subscribers”