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MCP Unity

MCP Unity is a Unity Editor extension that implements the Model Context Protocol. It bridges the interaction between AI assistants and Unity projects through a Node.js server, providing functions such as menu execution, object selection, and component update.
Developer toolsGames and gamification#Unity Extension#AI Interaction#Protocol Bridging#Editor Tool Local.JavaScript
5 points
22.6K
Open Site

Overview

Installation

Tools List

Content Details

Alternatives

What is MCP Unity?

MCP Unity is a bridge tool that integrates AI assistants into the Unity Editor, allowing AIs such as Claude and Windsurf to directly operate your Unity projects. It implements the MCP protocol through a Node.js server, enabling AI to execute Unity editor menu commands, modify scene objects, run tests, and perform other operations.

How to use MCP Unity?

Just three steps: 1) Install via the Unity Package Manager. 2) Configure the AI client. 3) Start the server, and then you can control the Unity Editor with natural language.

Applicable scenarios

Suitable for Unity development scenarios that require AI-assisted development, automated testing, rapid prototyping, and batch processing of scene objects.

Main Features

Intelligent IDE Integration
Automatically add Unity package caches to editors like VSCode to enhance the AI's understanding of project dependencies.
Menu Command Execution
Execute any Unity Editor menu command with natural language.
Scene Object Editing
Select/modify game objects and their component properties in the scene.
Package Management
Install/manage Unity software packages via AI instructions.
Test Execution
Execute various tests in the Unity Test Runner.
Advantages
Control the Unity Editor with natural language to improve development efficiency
Seamlessly integrate with mainstream AI assistants (Claude/Windsurf, etc.)
Support full - fledged Unity editing function calls
Automatically sense the project environment
Limitations
Requires a Node.js runtime environment
Some complex operations still require manual confirmation
Does not support Unity versions below 2022 for now

How to Use

Install the Unity Package
Install MCP Unity via the Unity Package Manager. Window > Package Manager > Add package from git URL
Install Node.js
Ensure that Node.js version 18+ is installed.
Configure the AI Client
Select Tools > MCP Unity > Server Window in the Unity Editor for configuration.
Start the Server
Click the Start Server button and wait for the AI client to connect.

Usage Examples

Create a New Object
Create a new game object in the scene via an AI instruction.
Batch Modify Properties
Modify the same properties of multiple game objects at once.

Frequently Asked Questions

What if the connection fails?
Why aren't the menu commands executed?

Related Resources

MCP Protocol Official Website
Official documentation for the Model Context Protocol
GitHub Repository
Project source code and issue tracking
Unity Official Documentation
Unity Editor version archive

Installation

Copy the following command to your Client for configuration
{
   "mcpServers": {
   "mcp-unity": {
      "command": "node",
      "args": [
         "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
      ],
      "env": {
         "UNITY_PORT": "8090"
      }
   }
   }
}
Note: Your key is sensitive information, do not share it with anyone.

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