Unity MCP Server

An MCP server that allows AI assistants to programmatically interact with Unity development projects.

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Unity MCP Server

Unity MCP Server lets Claude work with your Unity projects! Create scripts, manage shaders, organize folders - all through natural conversation with Claude.

日本語版 README はこちら | English

🎮 What Can You Do?

Talk to Claude to:

  • Create Unity Scripts: "Create a PlayerController script with jump functionality"
  • Manage Shaders: "Create a toon shader for my character"
  • Organize Projects: "Create a folder structure for my RPG game"
  • Get Project Info: "What render pipeline is my project using?"

🚀 Quick Start (Recommended: Claude Desktop Extension)

Option 1: Install via Claude Desktop Extension (Easiest)

  1. Download the Extension

  2. Install in Claude Desktop

    • Open Claude Desktop
    • Go to Extensions
    • Click "Install from file"
    • Select the downloaded unity-mcp-server.dxt

  3. Start Using!

    • Open any Unity project (2019.4 or newer)
    • Install Newtonsoft JSON package in Unity:
      • Open Window → Package Manager
      • Click the "+" button and select "Add package by name..."
      • Enter: com.unity.nuget.newtonsoft-json
      • Click "Add"
    • Ask Claude: "Setup Unity MCP in my project at /path/to/project"
    • Claude will install everything automatically!

Option 2: Manual Installation (For developers)

  1. Clone and build:

    git clone https://github.com/zabaglione/mcp-server-unity.git
cd mcp-server-unity
npm install
npm run build

  2. Configure Claude Desktop:

    {
  "mcpServers": {
    "unity": {
      "command": "node",
      "args": ["/path/to/mcp-server-unity/build/simple-index.js"]
    }
  }
}

📝 How to Use

Once installed, just talk to Claude naturally:

Creating Scripts

You: "Create a PlayerHealth script that handles damage and healing"
Claude: I'll create a PlayerHealth script for you...

Creating Shaders

You: "I need a water shader with wave animation"
Claude: I'll create a water shader with wave animation...

Organizing Your Project

You: "Set up a folder structure for a platformer game"
Claude: I'll create an organized folder structure for your platformer...

Checking Project Info

You: "What Unity version and render pipeline am I using?"
Claude: Let me check your project information...

🎯 Features

  • ✅ Smart Script Creation - Claude understands Unity patterns and creates proper MonoBehaviours
  • ✅ Shader Support - Works with Built-in, URP, and HDRP render pipelines
  • ✅ Project Organization - Create, move, and rename folders to keep projects tidy
  • ✅ Auto Setup - Claude automatically sets up the Unity integration when needed
  • ✅ Safe Operations - All changes are made safely with proper Unity asset handling

🛠️ Troubleshooting

"Unity server not responding"

  1. Make sure Unity Editor is open
  2. Check Window → Unity MCP Server in Unity
  3. Click "Start Server" if it's not running

"Can't find my project"

  • Tell Claude the exact path: "My Unity project is at C:/Projects/MyGame"
  • Make sure it's a valid Unity project with an Assets folder

Need Help?

🎮 Unity Version Support

  • Unity 2019.4+ - Full support
  • Unity 6 (6000.0+) - Recommended for best experience
  • Works on Windows, macOS, and Linux

📈 Latest Updates (v3.1.1)

  • ✅ Fixed render pipeline detection (now correctly identifies Built-in, URP, HDRP)
  • ✅ Resolved AssetDatabase synchronization errors
  • ✅ Improved file management and Unity integration stability

🤝 Contributing

Want to help improve Unity MCP Server? Check out our Contributing Guide!

📝 License

MIT License - see LICENSE

🙏 Acknowledgments

Ready to supercharge your Unity development with Claude? Download the extension now!

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