MCP Snake Game

What it does

MCP Snake Game embeds a fully playable Snake game as an MCP App directly inside Cursor's Agent chat pane. The game renders in a live interactive UI panel — no browser required. Players navigate the snake with arrow keys or WASD, and high scores are persisted to a local leaderboard via an app-only MCP tool.

Key features

• Inline game UI — Snake renders directly inside Cursor Agent chat using the MCP Apps ui:// resource mechanism
• Configurable settings — board size, difficulty level, and wall mode (wrap or collide) adjustable in-app
• Persistent leaderboard — scores saved locally via snake_save_score tool; viewable with snake_leaderboard
• Dual transport — runs over stdio for Cursor or HTTP for browser/remote clients
• Bidirectional tool calls — the UI proactively calls server tools for score saves, demonstrating full MCP Apps interactivity

Installation

Cursor (primary supported host):

1. Clone the repo and install: npm install && npm run build
2. Cursor will pick up .cursor/mcp.json automatically (reload window if needed)
3. In Agent chat, type: run snake_open

.cursor/mcp.json entry:

{
  "mcpServers": {
    "mcp-snake-game": {
      "command": "node",
      "args": ["path/to/mcp-snake-game/main.ts", "--stdio"]
    }
  }
}

Claude Desktop:

{
  "mcpServers": {
    "mcp-snake-game": {
      "command": "npx",
      "args": ["tsx", "/path/to/main.ts", "--stdio"]
    }
  }
}

Supported hosts

Designed for Cursor. Also supports HTTP transport for any MCP client that can connect to http://localhost:3001/mcp.