How to connect Antigravity to Anchor

Antigravity

1. Open ~/.gemini/config/mcp_config.json in a text editor:
   macOS Linux Windows

   mkdir -p ~/.gemini/config && touch ~/.gemini/config/mcp_config.json && open -e ~/.gemini/config/mcp_config.json

   mkdir -p ~/.gemini/config && touch ~/.gemini/config/mcp_config.json && xdg-open ~/.gemini/config/mcp_config.json

   mkdir %USERPROFILE%\.gemini\config 2>nul & notepad %USERPROFILE%\.gemini\config\mcp_config.json
   If the file is empty, paste this. If it already has an mcpServers block, add the anchor entry inside it: {
     "mcpServers": {
       "anchor": {
         "serverUrl": "https://mcp.anchor.cc/mcp"
       }
     }
   }
2. In Antigravity, click Customizations in the sidebar, then Installed. Under MCP Servers, click Authenticate next to anchor.
3. A sign-in window opens in your browser. Use your Anchor account and click Grant access.
4. Copy the authorization code the browser shows, paste it into Enter authorization code in Antigravity, and click Submit.
5. Ask Antigravity "What is Anchor, and what can I use it for?"