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, postcards, and receive scanned inbound physical mail with sandbox keys, approval controls, tracking, and webhooks.
Enables any MCP-compatible AI agent to send physical handwritten postcards via USPS with a single tool call, handling image upload, card creation, robotic handwriting, and mailing.
Enables AI agents to send physical letters and postcards to over 200 countries using Solana cryptocurrency for payment. It provides tools for generating mail quotes, managing wallet balances, and automating physical correspondence directly through the Model Context Protocol.