Unreal
Enable AI assistant clients like Cursor, Windsurf and Claude Desktop to control Unreal Engine through natural language using the Model Context Protocol (MCP).
What is Unreal?
Unreal is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to enable ai assistant clients like cursor, windsurf and claude desktop to control unreal engine through natural language using the model context protocol (mcp).
Enable AI assistant clients like Cursor, Windsurf and Claude Desktop to control Unreal Engine through natural language using the Model Context Protocol (MCP).
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- set_unreal_engine_path
- set_unreal_project_path
- get_unreal_engine_path
- get_unreal_project_path
- editor_run_python
Use Cases
Maintainer
Works with
Installation
NPM
npx -y @runreal/unreal-mcpManual Installation
npx -y @runreal/unreal-mcpConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Unreal
The Unreal MCP server (@runreal/unreal-mcp) bridges AI assistant clients — including Claude Desktop, Cursor, and Windsurf — with the Unreal Engine 5 editor via its Python Remote Execution plugin. It exposes over 20 tools covering asset management, world editing, actor creation, console command execution, camera control, and Python script execution within the editor, enabling developers to build and iterate on game projects through natural language without switching from their AI workflow to the Unreal editor manually.
Prerequisites
- Unreal Engine 5.4 or later installed
- Python Editor Script Plugin enabled in the Unreal Engine project settings
- Remote Execution option enabled in Unreal Engine project settings (Edit > Project Settings > Plugins > Python)
- Node.js 18+ and npx installed on the host machine
- An MCP-compatible client such as Claude Desktop, Cursor, or Windsurf
Enable the Python Editor Script Plugin in Unreal Engine
Open your Unreal project, go to Edit > Plugins, search for 'Python Editor Script Plugin', enable it, and restart the editor.
Enable Remote Execution in Unreal project settings
Go to Edit > Project Settings > Plugins > Python. Enable 'Enable Remote Execution' and note the multicast group endpoint and binding address (defaults are usually fine for local use).
Install or run the MCP server via npx
The server can be run directly with npx without a global install. npx will download and execute @runreal/unreal-mcp on demand.
npx -y @runreal/unreal-mcpConfigure your MCP client
Add the unreal server to your MCP client configuration file. For Claude Desktop, edit claude_desktop_config.json.
Set the Unreal Engine and project paths
In Claude (or your AI client), use the set_unreal_engine_path and set_unreal_project_path tools to tell the server where your Unreal installation and project live before issuing other commands.
Open your Unreal project and start issuing commands
With the project open in the Unreal editor and Remote Execution active, your AI client can now call tools to create actors, search assets, run Python scripts, and control the editor.
Unreal Examples
Client configuration
Add this to claude_desktop_config.json to register the Unreal MCP server. No API keys or environment variables are required — the server connects to the local Unreal editor via the Remote Execution protocol.
{
"mcpServers": {
"unreal": {
"command": "npx",
"args": ["-y", "@runreal/unreal-mcp"]
}
}
}Prompts to try
With the Unreal editor open and the MCP server connected, use these prompts to control your project.
- "List all static mesh assets in the /Game/Meshes folder"
- "Create a point light actor at position (0, 0, 300) in the current level"
- "Run a Python script in the editor to set all selected actors' scale to (2, 2, 2)"
- "Take a screenshot of the current editor viewport"
- "Search for all Blueprint assets whose name contains 'Player'"
- "Run the Unreal console command 'stat fps' to show frame rate"Troubleshooting Unreal
MCP server cannot connect to Unreal Editor — connection refused or timeout
Verify that 'Enable Remote Execution' is checked in Project Settings > Plugins > Python, and that your Unreal project is open and running. The Remote Execution plugin must be active in the editor for the MCP server to connect.
editor_run_python returns an error about missing modules
The Python scripts run inside the Unreal editor environment, which has its own set of available Python packages. Only modules bundled with Unreal's Python environment (like unreal) are available. Import standard library modules or pre-installed ones — do not assume pip-installed packages are available.
npx -y @runreal/unreal-mcp fails to download
Check your internet connection and npm registry access. Run 'npm view @runreal/unreal-mcp' to verify the package exists. If behind a corporate proxy, configure npm proxy settings with 'npm config set proxy http://proxy.example.com:8080'.
Frequently Asked Questions about Unreal
What is Unreal?
Unreal is a Model Context Protocol (MCP) server that enable ai assistant clients like cursor, windsurf and claude desktop to control unreal engine through natural language using the model context protocol (mcp). It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Unreal?
Install via npm with the command: npx -y @runreal/unreal-mcp. Then add the server configuration to your AI client's JSON config file (e.g., claude_desktop_config.json or .cursor/mcp.json).
Which AI clients work with Unreal?
Unreal works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Unreal free to use?
Yes, Unreal is open source and available under the MIT License license. You can use it freely in both personal and commercial projects.
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Set Up Unreal in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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