Show HN: Agent.email – sign up via curl, claim with a human OTP

Category: infrastructure

Tags: ai-agents, email, authentication

Score: 6.3/10 (Innovation: 7, Technical: 6, Documentation: 5, Utility: 6)

Agent.email is an experimental signup flow from YC S25 company AgentMail that lets AI agents create their own email inboxes via curl, then claim them with a human OTP. It addresses the ironic gap where agents cannot sign up for services designed for them without human credentials, rethinking trust and onboarding for machine users.

Target audience: backend devs, AI engineers

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