Email for AI agents.

Create an inbox with one API call, then send and receive real email over REST or MCP.

curl -X POST https://api.carlyemail.com/v0/agent/sign-up \
  -H 'content-type: application/json' \
  -d '{"human_email": "you@pepsi.com", "username": "pepsi"}'

# → pepsi@carlyemail.com, plus an API key.

An agent that can only read your mailbox is a feature. An agent with its own address is a participant. Three things follow from that.

Identity. A real address on a real domain, with SPF, DKIM and DMARC — one people can write to from Gmail and reply to. Bring your own domain, or use ours.

Conversation. Replies thread automatically. Attachments, drafts, labels and search all work the way mail is supposed to.

Record. Every message, send, delivery, bounce and complaint is stored and queryable — so you can answer what your agent said, and to whom, months later.

Inbound mail carries its authentication verdicts, so mail failing DMARC is labelled rather than handed to an agent as genuine. Addresses that bounce or complain are suppressed automatically. Keys can be scoped to a single inbox before you hand one to an agent.

Quickstart · Documentation · API reference · MCP