Google Antigravity

Antigravity has no list of ready-made connectors, so you add Reduck by editing a small config file yourself. It takes a few more clicks than Claude Desktop. The steps below cover the whole thing.

Before you start

You need a Reduck account, and a paired browser if you want scripts to run in your own Chrome. Both are in the quick start.

Add the server

Click the top-right corner menu icon (…), then select MCP Servers.

Click Manage MCP Servers.

Click View raw config.

Add the following to the file:

{
  "mcpServers": {
    "reduck": {
      "serverUrl": "https://mcp.reduck.ai/"
    }
  }
}

Save the file and return to MCP Servers to confirm reduck is listed.

Check that it worked

Open MCP Servers. reduck is listed and signed in, and its tools are now available to the agent. Ask Antigravity to run whoami. It replies with the Reduck account you are signed in as, which confirms the connection end to end.

If reduck is not signed in, click Authenticate and finish signing in to your Reduck account in the browser tab that opens.

Try it

Ask for something on a real site, and let the agent pick the script:

Reduck finds a script for the site, runs it, and hands back the result. The script catalogue lists everything it can already do.