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Claude Desktop

callwright for Claude Desktop

com.topness/callwright

Self-hosted MCP voice agent that places phone calls on your behalf via Retell.

client:Claude Desktop transport:stdio runtime:npm

Install callwright in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "callwright": {
      "command": "npx",
      "args": [
        "-y",
        "callwright"
      ],
      "env": {
        "RETELL_API_KEY": "<RETELL_API_KEY>",
        "MCP_AUTH_TOKEN": "<MCP_AUTH_TOKEN>",
        "PORT": "<PORT>",
        "CALLWRIGHT_DATA_DIR": "<CALLWRIGHT_DATA_DIR>",
        "CALLWRIGHT_PUBLIC_URL": "<CALLWRIGHT_PUBLIC_URL>",
        "CLAUDE_ROUTINE_URL": "<CLAUDE_ROUTINE_URL>",
        "CLAUDE_ROUTINE_TOKEN": "<CLAUDE_ROUTINE_TOKEN>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

callwright in other clients

callwright MCP server