Antigravity

Connect Runstack MCP in Google Antigravity via serverUrl and Bearer authentication.

Source: https://runstack.engineer/docs/mcp-antigravity

antigravity

Antigravity agents can call Runstack through the hosted MCP endpoint and the same meta tools as Cursor and VS Code.

Prerequisites

• Runstack API key — API Keys

Configuration

Open Manage MCP servers in the agent panel and choose View raw config, or edit the MCP config file directly (commonly ~/.gemini/antigravity/mcp_config.json on macOS/Linux).

{
  "mcpServers": {
    "runstack": {
      "serverUrl": "https://app.runstack.engineer/mcp",
      "headers": {
        "Authorization": "Bearer rnsk_YOUR_API_KEY",
        "Content-Type": "application/json"
      }
    }
  }
}

Restart Antigravity if the server does not show up after saving.

Verify

Start a task that needs an external toolkit (email, issues, docs). The agent should discover tools via search_tools and prompt you to connect OAuth when needed.