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Behavry Integration — Google Antigravity

Google Antigravity speaks MCP over Streamable HTTP via ~/.config/antigravity/mcp.json. It connects to Behavry's unified MCP gateway (/mcp/v1) with the agent's client credentials as an HTTP Basic header, using the standard mcpServers shape.

Prerequisites​

  • A running Behavry instance (your control-plane URL, or http://localhost:8000 for a local stack)
  • Google Antigravity installed
  • An enrolled agent (gives you the client_id / client_secret)

1. Enroll the agent​

In the dashboard: Agents → Enroll Agent → Antigravity (Google). Behavry provisions the agent and gives you the config block to paste, with credentials filled in.

2. Config file location​

~/.config/antigravity/mcp.json

3. Config block​

Merge under the mcpServers key:

{
  "mcpServers": {
    "behavry": {
      "url": "https://<your-behavry-host>/mcp/v1",
      "headers": {
        "Authorization": "Basic <base64(client_id:client_secret)>"
      }
    }
  }
}

Activate​

  1. Open Antigravity → Settings → Extensions → MCP Servers
  2. behavry should appear with a connected status
  3. If not visible, restart Antigravity

Verify​

Invoke a tool (e.g. "List files in the current directory"). The tool call appears in the dashboard → Live Activity.

Troubleshooting​

401 Unauthorized — Credentials wrong or agent revoked. Re-enroll and paste the fresh block.

Server not connecting — Confirm the url ends in /mcp/v1 and the backend is reachable: curl https://<your-behavry-host>/health.