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Antigravity IDE

Connect Antigravity IDE to agentgateway

Configure Antigravity IDE to use agentgateway as an MCP server.

Before you begin​

  1. Install and run agentgateway.
  2. Confirm agentgateway is up by opening the agentgateway UI.
  3. Use the MCP endpoint http://localhost:3000/mcp/http to connect your client to agentgateway. If you run agentgateway on a different host or port, replace localhost:3000 in the examples accordingly.

Configuration​

Add agentgateway to your Antigravity IDE MCP configuration. Set the serverUrl to your agentgateway proxy address, which defaults to http://localhost:3000/mcp/http for local deployments:

{
  "mcpServers": {
    "agentgateway": {
      "serverUrl": "http://localhost:3000/mcp/http"
    }
  }
}

Verify the Connection​

  1. Restart Antigravity IDE by closing the application and reopening it.
  2. Check that agentgateway tools are in the MCP tools list (usually found in the MCP or Tools panel).
  3. Click a tool, then click Run (or equivalent button). The tool execution verifies the connectivity with agentgateway.