Letter IRL for Cursor

com.letterirl/letter-irl

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

client:Cursor transport:streamable-http

Install Letter IRL in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "letter-irl": {
      "url": "https://api.letterirl.com/mcp"
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs