presidentrice/supergravity-mcp

supergravity-mcp is a small server that lets Claude Code, or any other MCP client, hand off tasks to Google's Antigravity desktop app by controlling its actual interface, the same way a person would click through it. It does not read Antigravity's stored login information, call any hidden programming interface, or take apart the app's code. Instead it relaunches Antigravity with a special Chrome debugging flag, the same technique browser testing tools use to control other Electron based apps, then connects to that debug port to type a task into the chat box, click send, and read back the finished reply. The project exists to help people whose computers can run the Antigravity app but cannot run its official command line tool, which does not work on older Intel based Macs. The author confirms it works on a 2015 MacBook Pro running an older version of macOS. Once installed, either as a combined plugin with its own skill or as a plain MCP server, it offers a few tools. One sends a single task to Antigravity and returns the reply, optionally letting you pick which underlying model to use and how long to wait. Another can run several separate tasks at the same time, each in its own Antigravity window, opening new windows automatically as needed, though this needs a special macOS permission and only works reliably with one window running at a time otherwise. A third tool lists every file Antigravity has generated across all past sessions, and a fourth checks how much of your usage quota remains, since Google models and Claude or GPT models draw from separate limits. Because this project only automates the same interface a human already uses, it avoids the legal risk of reverse engineering. The tradeoff is that if Google changes how the app looks or behaves, parts of this tool may need updating to match. It currently assumes only one Antigravity window is open when running a single task. The project is released under the MIT license.