┌────────────────────────────────────────────────────────────────────┐
│                🌐  GOOGLE CLOUD ECOSYSTEM                          │
│                                                                    │
│  ┌─────────────────┐  ┌──────────────────┐  ┌─────────────────┐  │
│  │  Gemini Spark   │  │  Google Workspace │  │  Vertex AI /    │  │
│  │  (Orchestrator) │  │  Docs/Drive/Gmail │  │  Cloud Run      │  │
│  └────────┬────────┘  └──────────────────┘  └─────────────────┘  │
└───────────┼────────────────────────────────────────────────────────┘
            │  JSON-RPC 2.0 (Streamable HTTP / SSE)
            │  HTTPS via ngrok / Cloudflare Tunnel
┌───────────▼────────────────────────────────────────────────────────┐
│          ⚡  ANTIGRAVITY MCP BRIDGE  (Your Machine)                │
│                                                                    │
│   /mcp  (Streamable HTTP)    /sse  (Server-Sent Events)           │
│   CORS · Authentication · 7 Registered MCP Tools                  │
│                                                                    │
│  ┌──────────────┐  ┌──────────────┐  ┌──────────────────────────┐ │
│  │  File System │  │   Terminal   │  │  Antigravity Subagents   │ │
│  │  Read/Write  │  │  Shell/CMD   │  │  (Autonomous Tasks)      │ │
│  └──────────────┘  └──────────────┘  └──────────────────────────┘ │
│  ┌──────────────┐  ┌──────────────┐  ┌──────────────────────────┐ │
│  │   Python     │  │  Node.js/npm │  │   Git / Docker / CI      │ │
│  └──────────────┘  └──────────────┘  └──────────────────────────┘ │
└────────────────────────────────────────────────────────────────────┘

// Example: Run Python unit tests
{
  "name": "run_system_command",
  "arguments": {
    "command": "python -m pytest tests/ -v",
    "working_dir": "C:/Users/dev/myproject"
  }
}

// Example: Write a FastAPI route
{
  "name": "write_file",
  "arguments": {
    "file_path": "src/api/routes.py",
    "content": "from fastapi import APIRouter\nrouter = APIRouter()\n\n@router.get('/health')\ndef health(): return {'status': 'ok'}"
  }
}

{
  "name": "read_file",
  "arguments": { "file_path": "src/main.py" }
}

{
  "name": "list_directory",
  "arguments": { "directory_path": "C:/Users/dev/myproject" }
}

{
  "name": "run_agent_task",
  "arguments": {
    "prompt": "Refactor all Python files to use async/await. Run tests after each file.",
    "workspace_dir": "C:/Users/dev/myproject"
  }
}

{
  "name": "get_agent_status",
  "arguments": { "task_id": "a1b2c3d4" }
}
// Returns: { "status": "completed", "output": "...", "error": null }

git clone https://github.com/nandhakumar-murugan/antigravity-mcp-bridge.git
cd antigravity-mcp-bridge
pip install -r requirements.txt

AUTHTOKEN = "your_ngrok_authtoken_here"

# Windows (Double-click or run):
start_server.bat

# macOS / Linux:
python run_with_tunnel.py

[INFO] NGROK MCP TUNNEL IS LIVE!
[LINK] PASTE THIS IN GEMINI SPARK: https://xxxx.ngrok-free.dev/mcp

import asyncio
from mcp.client.session import ClientSession
from mcp.client.streamable_http import streamable_http_client

async def main():
    url = "https://xxxx.ngrok-free.dev/mcp"
    async with streamable_http_client(url) as (read, write):
        async with ClientSession(read, write) as session:
            await session.initialize()
            tools = await session.list_tools()
            print([t.name for t in tools.tools])

            # Run a command
            result = await session.call_tool("run_system_command", {
                "command": "python --version"
            })
            print(result.content[0].text)

asyncio.run(main())

curl -X POST https://xxxx.ngrok-free.dev/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"my-app","version":"1.0"}}}'

{
  "mcpServers": {
    "antigravity-bridge": {
      "command": "python",
      "args": ["run_with_tunnel.py"],
      "env": { "NGROK_AUTHTOKEN": "your_token" }
    }
  }
}

antigravity-mcp-bridge/
├── server.py               # Core MCP server with all 7 tool definitions
├── run_with_tunnel.py      # One-click launcher (server + ngrok tunnel)
├── start_server.bat        # Windows double-click starter
├── test_client.py          # MCP connection verification script
├── calculator.py           # Example: AI-generated code via Gemini Spark
├── test_calculator.py      # Example: AI-generated tests (all 6 passed)
├── requirements.txt        # Python dependencies
├── .gitignore
├── LICENSE                 # MIT
└── README.md

mcp>=2.0.0
uvicorn
fastapi
pyngrok
python-dotenv