Clients

Antigravity

Google Antigravity — Gemini MCP config.

Prerequisite

Install the Screen Beaver Windows desktop app first. MCP only works after the software is installed and running — the agent talks to the studio over MCP; it does not replace the app.

Get from Microsoft Store, install it, then leave Screen Beaver open while you use your agent.

MCP CLI

After the desktop app is installed, install the MCP CLI once (shared by every client):

terminalshell
npm i -g @screenbeaver/mcp

Full npm notes: npm install page.

Register Screen Beaver in Antigravity’s MCP config. Prefer streamable/stdio local servers as supported by your build.

Config

Config location: ~/.gemini/config/mcp_config.json (or Antigravity MCP settings)

mcp_config.jsonjson
{  "mcpServers": {    "screenbeaver": {      "command": "screenbeaver-mcp"    }  }}

Verify

Confirm Screen Beaver is running on Windows, then Restart Antigravity, confirm the server is connected, then ask Gemini to call Screen Beaver tools.

Prefer outcome prompts: “Capture onboarding, add captions, generate voiceover, prepare export.” The agent should call record_and_build or live_build_demo.