Quickstart | r3 Documentation

Install Node.js and configure the r3 MCP server for Antigravity CLI.

Connect Antigravity CLI

Add this entry to .gemini/settings.json in your project. Merge it with existing settings rather than replacing them.

{
  "mcpServers": {
    "r3": {
      "command": "npx",
      "args": ["-y", "@n3wth/r3"]
    }
  }
}

Start Antigravity CLI and run /mcp to inspect the server connection and available tools. Review tool calls before granting access to private data.

See the Antigravity CLI MCP documentation for configuration and troubleshooting.