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Connecting to Google Antigravity

Google Antigravity supports the Model Context Protocol (MCP) natively, allowing the editor to securely connect to tools and external services defined in your HasMCP dashboard.

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Setup Instructions

Antigravity manages connections through its built-in MCP Store.

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1. Access the MCP Configuration

1

Open Agent Panel

Open the Antigravity Editor and locate the Agent Panel in the side panel.
2

Manage Servers

Click the ”…” (three dots) dropdown at the top of the panel and select Manage MCP Servers.

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2. Configure Custom HasMCP Server

1

Edit Config

In the Manage MCP Servers view, click on View raw config. This will open your mcp_config.json file.
2

Add Server

Add your HasMCP server to the mcpServers object. For remote servers, it is recommended to use the @hasmcp/remote-mcp bridge:
{
  "mcpServers": {
    "myServer": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://app.hasmcp.com/mcp/<SERVER_ID>",
        "--header",
        "x-hasmcp-key: Bearer ${HASMCP_MCP_ACCESS_TOKEN}"
      ],
      "env": {
        "HASMCP_MCP_ACCESS_TOKEN": "YOUR_TOKEN_VALUE"
      }
    }
  }
}
SERVER_ID: Your unique server identifier from the HasMCP dashboard. ACCESS_TOKEN: The secure token generated for your server.

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3. Save and Verify

Save the mcp_config.json file. The editor will automatically attempt to initialize the connection. Resources and tools from your HasMCP server will now be available to the AI agent for real-time context and action execution.

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Troubleshooting

Authentication: Ensure your token is valid and the header is correctly prefixed with Bearer. Node.js Required: Since the connection uses npx, ensure Node.js is installed on your system. Manual Refresh: If tools do not appear immediately, try toggling the server off and on within the Manage MCP Servers list.