Resend
Overview
Resend is an email API for developers. It sends transactional email and marketing broadcasts from your verified domains, keeps contacts in segments with topic subscriptions, and runs automations that custom events start. The hosted MCP server, the `resend` CLI and the REST API each cover the whole platform. The MCP server signs in with OAuth; an agent that can't open a browser can send an API key as a Bearer token instead. Direct API requests must also send a `User-Agent` header, and a team gets 10 requests per second by default.
Workflows
0 workflows using Resend.
Tools
What agents can reach at Resend.
- Add a contact to a segment
Resend · Adds an existing contact, found by ID or email address, to a segment that broadcasts can target.
- Create a broadcast
Resend · Creates a marketing email to every subscribed contact in one segment, saved as a draft or, with send set to true, sent or scheduled at once.
- Create a contact
Resend · Adds a contact with an email address and optional name, custom properties, segments and topic subscriptions, and returns its ID.
- Send an email
Resend · Sends one email from a verified domain to up to 50 recipients, now or at a scheduled time, and returns its ID.
- Send an event
Resend · Sends a named event for one contact, by contact ID or email address, and starts every automation that event triggers.