AgentMail is an API-first email provider built from scratch to serve the unique needs of AI agents, offering them dedicated inboxes to send, receive, and act upon emails. Unlike traditional providers such as Gmail or Outlook, which lack API support for new inboxes, charge per inbox, impose restrictive limits, and offer poor developer experience, AgentMail provides automated, unlimited inbox creation, usage-based pricing, and real-time event handling. This infrastructure is designed to scale with the high volumes of emails AI agents often face, enabling developers to build sophisticated email-enabled agents without infrastructure bottlenecks.