Letter IRL for VS Code

com.letterirl/letter-irl

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

client:VS Code transport:streamable-http

Install Letter IRL in VS Code

.vscode/mcp.json

{
  "servers": {
    "letter-irl": {
      "type": "http",
      "url": "https://api.letterirl.com/mcp"
    }
  }
}

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs