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Enable AI assistant clients like Cursor, Windsurf and Claude Desktop to control Unreal Engine through natural language using the Model Context Protocol (MCP).
| Date | Stars |
|---|---|
| 2026-07-31 | 2045 |
| 2026-08-05 | 2053 |
| 2026-08-06 | 2053 |
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# Model Context Protocol for Unreal Engine
<span style="color: #555555">unreal-mcp</span>
[](https://opensource.org/licenses/MIT)
[](https://www.unrealengine.com)
[](https://www.python.org)
[](https://github.com/chongdashu/unreal-mcp)
</div>
This project enables AI assistant clients like Cursor, Windsurf and Claude Desktop to control Unreal Engine through natural language using the Model Context Protocol (MCP).
## ⚠️ Experimental Status
This project is currently in an **EXPERIMENTAL** state. The API, functionality, and implementation details are subject to significant changes. While we encourage testing and feedback, please be aware that:
- Breaking changes may occur without notice
- Features may be incomplete or unstable
- Documentation may be outdated or missing
- Production use is not recommended at this time
## 🌟 Overview
The Unreal MCP integration provides comprehensive tools for controlling Unreal Engine through natural language:
| Category | Capabilities |
|----------|-------------|
| **Actor Management** | • Create and delete actors (cubes, spheres, lights, cameras, etc.)<br>• Set actor transforms (position, rotation, scale)<br>• Query actor properties and find actors by name<br>• List all actors in the current level |
| **Blueprint Development** | • Create new Blueprint classes with custom components<br>• Add and configure components (mesh, camera, light, etc.)<br>• Set component properties and physics settings<br>• Compile Blueprints and spawn Blueprint actors<br>• Create input mappings for player controls |
| **Blueprint Node Graph** | • Add event nodes (BeginPlay, Tick, etc.)<br>• Create function call nodes and connect them<br>• Add variables with custom types and default values<br>• Create component and self references<br>• Find and manage nodes in the graph |
| **Editor Control** | • Focus viewport on specific actors or locations<br>• Control viewport camera orientation and distance |
All these capabilities are accessible through natural language commands via AI assistants, making it easy to automate and control Unreal Engine workflows.
## 🧩 Components
### Sample Project (MCPGameProject) `MCPGameProject`
- Based off the Blank Project, but with the UnrealMCP plugin added.
### Plugin (UnrealMCP) `MCPGameProject/Plugins/UnrealMCP`
- Native TCP server for MCP communication
- Integrates with Unreal Editor subsystems
- Implements actor manipulation tools
- Handles command execution and response handling
### Python MCP Server `Python/unreal_mcp_server.py`
- Implemented in `unreal_mcp_server.py`
- Manages TCP socket connections to the C++ plugin (port 55557)
- Handles command serialization and response parsing
- Provides error handling and connection management
- Loads and registers tool modules from the `tools` directory
- Uses the FastMCP library to implement the Model Context Protocol
## 📂 Directory Structure
- **MCPGameProject/** - Example Unreal project
- **Plugins/UnrealMCP/** - C++ plugin source
- **Source/UnrealMCP/** - Plugin source code
- **UnrealMCP.uplugin** - Plugin definition
- **Python/** - Python server and tools
- **tools/** - Tool modules for actor, editor, and blueprint operations
- **scripts/** - Example scripts and demos
- **Docs/** - Comprehensive documentation
- See [Docs/README.md](Docs/README.md) for documentation index
## 🚀 Quick Start Guide
### Prerequisites
- Unreal Engine 5.5+
- Python 3.12+
- MCP Client (e.g., Claude Desktop, Cursor, Windsurf)
### Sample project
For getting started quickly, feel free to use the starter project in `MCPGameProject`. This is a UE 5.5 Blank Starter Project with the `UnrealMCP.uplugin` already configured.
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