https://mailroom.capumattu.com/v1
Docs
Everything you need to give an agent a real inbox. Start with the quickstart; it takes about five minutes and ends with an email in your agent’s hands.
Start
Guides
- Verification codes and magic linksLet an agent sign up for a service with its own address and read the code or link it receives./docs/verification-codes
- Temporary inboxesThrowaway, receive-only inboxes for one-off jobs such as reading a sign-up code. They wipe themselves when they expire./docs/temporary-inboxes
- WebhooksSigned POSTs for new mail and delivery events, and how to verify them in TypeScript and Python./docs/webhooks
- Custom domainsSend and receive from your own domain, such as ops@mail.yourcompany.com, with its own DKIM key./docs/custom-domains
- MCP serverGive Claude Desktop, Claude Code, Cursor or any MCP client its own inbox with @capumattu/mcp./docs/mcp
- Contacts and memoryWho your agent is talking to: a record per outside address, with notes and metadata your agent can read and update./docs/contacts
- Custom metadataAttach your own ids and fields to contacts, inboxes and threads, and filter on them./docs/metadata
- KnowledgeDocuments your agent can search, and that reply drafts cite: policies, shipping times, how you write./docs/knowledge
- Reply draftsAsk for a draft answer to a message, built from the thread, the contact and your knowledge. It is never sent on its own./docs/reply-drafts
- AI processing and privacyOne workspace setting decides what email content may leave the Capumattu server: off, categorize or full./docs/ai-processing
Reference
- API referenceEvery /v1 endpoint, with parameters, pagination, errors and limits./docs/api
- Plans and limitsWhat each plan allows, how usage is counted, what happens at a limit, and every error code a limit returns./docs/plans
- Self-hostingRun Mailroom, the engine behind Capumattu, on your own server./docs/self-hosting