MCP for Unity Server

Model Context Protocol server for Unity Editor integration. Control Unity through natural language using AI assistants like Claude, Cursor, and more.

Maintained by Coplay - This project is not affiliated with Unity Technologies.

💬 Join our community: Discord Server

Required: Install the Unity MCP Plugin to connect Unity Editor with this MCP server.

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Installation

Option 1: Using uvx (Recommended)

Run directly from GitHub without installation:

# HTTP (default)
uvx --from git+https://github.com/CoplayDev/unity-mcp@v8.1.4#subdirectory=Server \
    mcp-for-unity --transport http --http-url http://localhost:8080

# Stdio
uvx --from git+https://github.com/CoplayDev/unity-mcp@v8.1.4#subdirectory=Server \
    mcp-for-unity --transport stdio

MCP Client Configuration (HTTP):

{
  "mcpServers": {
    "UnityMCP": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

MCP Client Configuration (stdio):

{
  "mcpServers": {
    "UnityMCP": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/CoplayDev/unity-mcp@v8.1.4#subdirectory=Server",
        "mcp-for-unity",
        "--transport",
        "stdio"
      ],
      "type": "stdio"
    }
  }
}

Option 2: Using uv (Local Installation)

For local development or custom installations:

# Clone the repository
git clone https://github.com/CoplayDev/unity-mcp.git
cd unity-mcp/Server

# Run with uv (HTTP)
uv run server.py --transport http --http-url http://localhost:8080

# Run with uv (stdio)
uv run server.py --transport stdio

MCP Client Configuration (HTTP):

{
  "mcpServers": {
    "UnityMCP": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

MCP Client Configuration (stdio – Windows):

{
  "mcpServers": {
    "UnityMCP": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "C:\\path\\to\\unity-mcp\\Server",
        "server.py",
        "--transport",
        "stdio"
      ]
    }
  }
}

MCP Client Configuration (stdio – macOS/Linux):

{
  "mcpServers": {
    "UnityMCP": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "/path/to/unity-mcp/Server",
        "server.py",
        "--transport",
        "stdio"
      ]
    }
  }
}

Option 3: Using Docker

docker build -t unity-mcp-server .
docker run -p 8080:8080 unity-mcp-server --transport http --http-url http://0.0.0.0:8080

Configure your MCP client with "url": "http://localhost:8080/mcp". For stdio-in-docker (rare), run the container with --transport stdio and use the same command/args pattern as the uv examples, wrapping it in docker run -i ... if needed.

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Configuration

The server connects to Unity Editor automatically when both are running. No additional configuration needed.

Environment Variables:

• DISABLE_TELEMETRY=true - Opt out of anonymous usage analytics
• LOG_LEVEL=DEBUG - Enable detailed logging (default: INFO)

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Example Prompts

Once connected, try these commands in your AI assistant:

• "Create a 3D player controller with WASD movement"
• "Add a rotating cube to the scene with a red material"
• "Create a simple platformer level with obstacles"
• "Generate a shader that creates a holographic effect"
• "List all GameObjects in the current scene"

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Documentation

For complete documentation, troubleshooting, and advanced usage:

📖 Full Documentation

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Requirements

• Python: 3.10 or newer
• Unity Editor: 2021.3 LTS or newer
• uv: Python package manager (Installation Guide)

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License

MIT License - See LICENSE