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75 stars on GitHub with active community development
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Open source under MIT license — free to use and modify
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280+ AI tools across 50 categories for Unity editor
What is Unity MCP Pro Plugin? Features and use cases explained.
About Unity MCP Pro Plugin
Unity MCP Pro is a Unity editor plugin that bridges AI assistants (Claude, Cursor, Windsurf, VS Code Copilot) to your Unity editor via a robust WebSocket connection. It provides 280+ tools across 50 categories—from scene management, GameObjects, scripts, prefabs, physics, lighting, animation, materials, terrain, particles, audio, UI, build pipeline, input simulation, screenshots, testing, 2D, timeline, splines, ECS, netcode, XR, and more. Every AI operation is integrated with Unity's Undo system for full Ctrl+Z support. The plugin includes production-grade WebSocket features (heartbeat, auto-reconnect with exponential backoff, port scanning 6605–6609), smart type parsing (automatic conversion of strings to Vector3, Color, etc.), domain reload safety, and a built-in server setup window. Compatible with Unity 2021.3+ (Built-in, URP, HDRP). Note: This is the Unity-side component; you also need the separate MCP server (available at unity-mcp.abyo.net).
Use Cases
- ▸Generate C# scripts and attach them to GameObjects using natural language
- ▸Create and configure prefab variants without leaving the editor
- ▸Adjust lighting, post-processing, and material properties through AI commands
- ▸Run batch operations like renaming multiple GameObjects or setting layers
- ▸Debug runtime issues by querying scene objects and components via AI
- ▸Automate build pipeline steps, including platform switching and asset bundling
Features
- ✓Connects Claude, Cursor, Windsurf, and VS Code Copilot to Unity via WebSocket
- ✓Provides 280+ tools across 50 categories covering all major Unity workflows
- ✓Supports full undo/redo for every AI operation through Unity's Undo system
- ✓Implements production-grade WebSocket with heartbeat, auto-reconnect, and port scanning
- ✓Performs smart type parsing to convert string inputs to Unity types like Vector3, Color, Quaternion
- ✓Survives domain reloads without losing connection state
- ✓Includes a server setup window for easy MCP configuration and IDE integration
FAQ
Does this work with my existing Unity project?▼
Yes, Unity MCP Pro integrates as a plugin via Unity Package Manager (Git URL or direct copy) and works with Unity 2021.3+ including 2022, 2023, and Unity 6 (Built-in, URP, HDRP). It does not modify your project structure; just install and configure the MCP server.
Do I need to install anything besides this plugin?▼
Yes, this plugin is the Unity-side component. You also need the MCP server, available at unity-mcp.abyo.net. After downloading, build it with `npm install && npm run build` and configure your AI assistant to connect to it.
Is it safe to use in a production project?▼
Absolutely. The plugin uses production-grade WebSocket with heartbeat and auto-reconnect, and every AI operation is recorded in Unity's Undo system, allowing full Ctrl+Z support. It is domain reload safe and has been tested with various Unity versions.
How to install Unity MCP Pro Plugin — setup guide and prerequisites.
Installation
Install Unity MCP Pro Plugin to get started:
$git clone https://github.com/youichi-uda/unity-mcp-pro-plugin.git
Or visit the project page for detailed setup instructions.
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