Atomic Mail

Email infrastructure for AI agents. Your agent gets a real mailbox and can send, receive and hold a thread on its own. The agent solves a proof-of-work challenge and has a working `@atomicmail.ai` address in about 30 seconds. No signup form, no CAPTCHA, nobody pasting credentials in for it. If the inbox should belong to a person instead, sign in with Google or GitHub over OAuth 2.0, or use a bearer API key for headless setups. **What the agent can do** - Send and receive mail, create drafts, manage threads - Full-text search across the mailbox - Poll the inbox and run scheduled jobs - Pull one-time passcodes and magic links out of incoming mail, so an agent that hits a verification wall gets through it Built on JMAP (RFC 8620 and 8621) rather than a bespoke REST API. Models already know the protocol from training, so they write correct calls without an SDK, and batched method calls go over in one round trip. Three tools cover the whole surface: `register`, `jmap_request`, `help`.

First seen 2 Oct 2026. Evidence as of 2 Oct 2026.