Mailbox.bot
@arbengine
Postal mail API for AI agents. mailbox.bot lets agents send outbound physical mail, including letters, certified mail, postcards, and batch mailings, with cost previews, approval controls, tracking, proof artifacts, and signed webhooks. It also supports inbound mail context from
Overview
What is Mailbox.bot?
Mailbox.bot is a remote MCP server and postal mail API for AI agents. It enables agents to send outbound physical mail (letters, certified mail, postcards, batch mailings) with cost previews, approval controls, tracking, proof artifacts, and signed webhooks. It also supports inbound mail context from forwarded scans, photos, PDFs, and documents, allowing agents to understand and generate replies to physical mail.
How to use Mailbox.bot?
Configure the server by adding the mailbox-bot entry to your mcpServers JSON with the endpoint https://mailbox.bot/api/mcp and an Authorization header using a Bearer token from your mailbox.bot API key. The server uses Streamable HTTP transport.
Key features of Mailbox.bot
- Send outbound postal mail, certified mail, and postcards
- Preview mailing costs before sending
- Track outbound mail status in real time
- Receive proof artifacts and signed webhooks
- Process inbound mail context from scans, PDFs, and photos
- Generate replies using physical-mail context
Use cases of Mailbox.bot
- An AI assistant sends a certified letter on behalf of a user and tracks its delivery.
- A business processes incoming postal mail photos, extracts context, and drafts a response.
- An agent previews costs for a batch mailing before approving the send.
- A user receives proof of delivery artifacts via webhook after a postcard is mailed.
FAQ from Mailbox.bot
What transport does Mailbox.bot use?
Mailbox.bot uses Streamable HTTP transport.
How do I authenticate with Mailbox.bot?
Authentication is via a Bearer token in the Authorization header using your mailbox.bot API key.
Can Mailbox.bot handle inbound mail?
Yes, it processes inbound mail context from forwarded scans, phone-captured postal mail, PDFs, photos, and documents so agents can understand physical-mail context and generate replies.
Does Mailbox.bot support real street-address mailboxes?
Real street-address receiving mailboxes for AI agents are opening soon through the mailbox.bot waitlist.
