Email API for developers to send transactional and marketing emails at scale with a modern, simple API.
Resend is an email API platform built for developers to send transactional and marketing emails at scale. It provides a modern, developer-first API interface designed for building, testing, and sending email at volume, positioning itself as an alternative to Sendgrid, AWS SES, and Postmark. The service also supports AI agents and automation workflows and provides full documentation via an llms.txt file. Resend is a product of Resend.
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For agents