unity-mcp-plugin

Overview

The Unity MCP Plugin is a comprehensive bridge that enables AI assistants to control Unity Editor through Model Context Protocol. It runs a lightweight HTTP server inside Unity on localhost:7890, providing access to 288 tools across 30+ categories including scene management, GameObjects, components, physics, terrain, shader development, profiling, and more. The plugin is one half of a two-part system, requiring the Node.js MCP Server to connect AI assistants to the Unity bridge.

Try asking AI

After installing, here are 7 things you can ask your AI assistant:

• create_scene

  Create a new Unity scene

  Try:Create a new empty scene called 'MainMenu'Try:Generate a 3D scene with basic lighting
• create_gameobject

  Create a new GameObject in the scene

  Try:Create a cube GameObject at position (0, 0, 0)Try:Add an empty GameObject named 'Player'
• add_component

  Add a component to a selected GameObject

  Try:Add a Rigidbody component to the selected objectTry:Attach a MeshFilter to the cube
• build_project

  Build the Unity project for specified platforms

  Try:Build the project for Windows 64-bitTry:Create an Android build with development settings
• play_scene

  Start playing the current scene

  Try:Play the sceneTry:Start play mode with full screen
• create_shader_graph

  Create a new Shader Graph asset

  Try:Create a new Shader Graph called 'WaterShader'Try:Generate a PBR shader graph for materials
• create_terrain

  Create a new terrain object in the scene

  Try:Create a 512x512 terrain with 100 heightTry:Add a terrain with 4 terrain layers
• bake_navmesh

  Bake NavMesh for navigation in the scene

  Try:Bake NavMesh for the entire sceneTry:Generate NavMesh with 100 cell size
• create_prefab

  Create a prefab asset from a GameObject

  Try:Create a prefab from the selected GameObjectTry:Save the cube as a prefab called 'CubePrefab'
• create_material

  Create a new material asset

  Try:Create a new standard material called 'PlayerMaterial'Try:Generate a red material with metallic value 0.5
• create_script

  Create a new C# script asset

  Try:Create a new C# script called 'PlayerController'Try:Generate a script with basic movement functionality
• profiler_start

  Start the Unity Profiler

  Try:Start profiling CPU usageTry:Begin memory profiling session

Comparable tools

Installation

{
  "mcpServers": {
    "unity": {
      "command": "node",
      "args": ["path/to/unity-mcp-server.js"],
      "env": {
        "UNITY_PROJECT_PATH": "/path/to/your/unity/project"
      }
    }
  }
}

FAQ

What AI assistants are compatible with this MCP plugin?

The Unity MCP Plugin works with Claude (via Claude Desktop), Cursor, Windsurf, and any other MCP-compatible AI assistant.

What Unity versions are supported?

Unity 2021.3 LTS or newer (tested on 2022.3 LTS and Unity 6). Requires .NET Standard 2.1 or .NET Framework.

Can multiple Unity editors connect to the same MCP server?

Yes, the plugin supports multi-instance discovery automatically (including ParrelSync clones), with each editor using its own port.

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