An open-source MCP server for sending physical mail (letters, postcards, certified mail) directly from AI agents, with per-piece payment and no account signup needed.
Official mailbox.bot MCP server for AI agents. Send letters, certified mail and postcards, and give an agent its own street address + postal mailbox number. Agent receiving virtual mailboxes with a real street address are live now at $15/mo in Manhattan Beach, CA. Sandbox keys, approval controls, tracking and webhooks.