Guides
How to send real physical mail from an AI agent — setup, tools, and pricing.
Send a letter from Claude, Cursor, or Codex
The exact per-client setup for the Mailsnail MCP server, plus a 60-second walkthrough to mail yourself a postcard from your agent.
How to send physical mail from an AI agent
Install the Mailsnail MCP server and have any AI agent mail a real USPS letter, postcard, or certified mail — no signup, pay-per-piece.