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mcp/harbor
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Letter IRL MCP

v1.0.0

com.letterirl/letter-irl

Write, preview and mail real letters and postcards to US addresses from your AI app.

transport:streamable-http
Website

Target client

run in your project directory 

claude mcp add --transport http letter-irl https://api.letterirl.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.