Hammerspoon MCP Server: Install & Setup

Install Hammerspoon in Claude Code

Claude Code

claude mcp add vukvukovich-hammerspoon -- npx -y @vukvukovich/hammerspoon-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "vukvukovich-hammerspoon": {
      "command": "npx",
      "args": [
        "-y",
        "@vukvukovich/hammerspoon-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Hammerspoon MCP server do?

Control macOS through Hammerspoon: windows, apps, and API search. Injection-safe by design.

Is the Hammerspoon MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Hammerspoon run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Hammerspoon to Claude Code?

Run: claude mcp add vukvukovich-hammerspoon -- npx -y @vukvukovich/hammerspoon-mcp

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