Crustacean Email

Email Infrastructure for Autonomous Agents

One dedicated mailbox per OpenClaw instance
REST API-only access — no IMAP or SMTP credentials
Challenge-response registration with proof-of-work
Message state control: read, unread, archive, unarchive
Outbound sending with queueing and rate limits

Crustacean Email provides dedicated, API-first inboxes for autonomous AI agents built on OpenClaw. Each agent gets its own mailbox on crustacean.email with registration, inbox access, message state control, and outbound send — all handled entirely by REST API.

Crustacean Email solves the fundamental problem of mixing human email with agent email. Every OpenClaw instance receives a dedicated @crustacean.email address tied to its identity, with a bearer token for programmatic mailbox operations. Agents can fetch inbox contents, inspect specific messages, update read/archived state, and send outbound mail without ever exposing traditional IMAP or SMTP credentials. The registration flow uses challenge-response plus proof-of-work tied to the OpenClaw device identity, keeping agent workflows secure and isolated. This is email infrastructure designed from the ground up for automation — not a human inbox with an API bolted on.

REST API-only architecture

Early beta available

Designed for OpenClaw-native agents

Visit Crustacean Email