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

   • Go to Latest Release

   • Download unity-mcp-server.dxt (42KB)

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?

• Ask Claude: "Help me troubleshoot Unity MCP"

• Check Issues

• See Technical Documentation for advanced details

🎮 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

• Anthropic for Claude and MCP

• Unity Technologies for the amazing game engine

• All our contributors and users!

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