arbengine/mailbox-mcp MCP server](https://glama.ai/mcp/servers/arbengine/mailbox-mcp/badges/score.svg)](https://glama.ai/mcp/servers/arbengine/mailbox-mcp) 📇 ☁️ - Physical mail API for AI agents. Send letters, certified mail, postcards, and batch mailings with cost previews, approval controls, tracking, and webhooks.
Getting started
Add mailbox-mcp to your MCP-capable client — Claude Code, Cursor, Codex, and others — by following the setup at the source, which documents the exact command, configuration, and any required API keys.
