AgentMail
Gives AI agents real email inboxes via a REST API, built for autonomous workflows
AgentMail lets you create, send, receive and search email inboxes for AI agents through an API, with threads, attachments, realtime events, custom domains and semantic search rather than adapting a human inbox. It's positioned specifically for agent use cases: extracting 2FA codes for browser agents, executive-assistant scheduling, parsing attachments, and routing support email. It has delivered 100M+ emails and offers instant inbox creation with no domain verification wait, and a free tier with no credit card required.
What holds up
- +Instant inbox creation with no domain verification wait — one API call, milliseconds
- +Built specifically for agent workflows (2FA extraction, attachment parsing, routing), not repurposed human email
- +Free to start with no credit card, so you can test before committing
Mind the limits
- −Backed by $6M seed funding — a young company, continuity risk if it doesn't reach scale
- −Multi-tenancy and custom domains are listed as features, implying they may sit behind paid tiers
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