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

Agent.Email is a signup flow from YC S25 company AgentMail that lets AI agents create their own email inboxes via a curl command, verified by a human OTP. Designed for developers building autonomous AI systems, it streamlines agent-to-agent communication by replacing traditional human-centric registration. The project is notable for reimagining SaaS onboarding to serve non-human users, highlighting a shift toward AI-native infrastructure.