unreal-engine-mcp
CommunityMCP server by ChiR24 · updated · ★ 959 · 675 downloads a week
EngineWire: drive the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more. unreal-engine-mcp is a community project by ChiR24, not verified by a company domain.
Install unreal-engine-mcp
Built from the published package, never by AIclaude mcp add unreal-engine-mcp -e UE_PROJECT_PATH="C:/Users/YourName/Documents/Unreal Projects/MyGame" -- npx -y unreal-engine-mcp-serverRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"unreal-engine-mcp": {
"command": "npx",
"args": [
"-y",
"unreal-engine-mcp-server"
],
"env": {
"UE_PROJECT_PATH": "C:/Users/YourName/Documents/Unreal Projects/MyGame"
}
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"unreal-engine-mcp": {
"command": "npx",
"args": [
"-y",
"unreal-engine-mcp-server"
],
"env": {
"UE_PROJECT_PATH": "C:/Users/YourName/Documents/Unreal Projects/MyGame"
}
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"unreal-engine-mcp": {
"command": "npx",
"args": [
"-y",
"unreal-engine-mcp-server"
],
"env": {
"UE_PROJECT_PATH": "C:/Users/YourName/Documents/Unreal Projects/MyGame"
}
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add unreal-engine-mcp --env UE_PROJECT_PATH="C:/Users/YourName/Documents/Unreal Projects/MyGame" -- npx -y unreal-engine-mcp-server{
"mcpServers": {
"unreal-engine-mcp": {
"command": "npx",
"args": [
"-y",
"unreal-engine-mcp-server"
],
"env": {
"UE_PROJECT_PATH": "C:/Users/YourName/Documents/Unreal Projects/MyGame"
}
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add unreal-engine-mcp npx -y unreal-engine-mcp-serverGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the unreal-engine-mcp block.
Last commit 4 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 959 stars, original repository
No risky patterns in the files we checked
What you need
| Setting | Needed | What it is |
|---|---|---|
UE_Environment variable | Required | Your Unreal project folder or its .uproject file. The server reads the capability token from <project>/Saved/MCP/capability-token and the WebSocket port from the project settings. |
MCP_Environment variable, secret | Optional | Capability token to present to the editor. Only needed when the server cannot read the project folder, for example over LAN. |
MCP_Environment variable | Optional | Editor WebSocket port. Default: the first Listen Ports entry in the project settings, else 8090. |
MCP_Environment variable | Optional | Editor host to connect to. A LAN address also needs MCP_AUTOMATION_ALLOW_NON_LOOPBACK=true and Allow Non Loopback in the plugin settings. Default: 127.0.0.1 |
MCP_Environment variable | Optional | SECURITY: allow a non-loopback MCP_AUTOMATION_HOST. Enable only on a trusted network. Default: false |
MCP_Environment variable | Optional | Connect with wss:// instead of ws://. Default: false |
MCP_Environment variable | Optional | Extra content roots to allow besides /Game, /Engine, /Script, /Temp and /Niagara, comma-separated. Example: /MyPluginContent/ |
MCP_Environment variable | Optional | How long to wait for the editor connection, in milliseconds. Default: 5000 |
MCP_Environment variable | Optional | Overrides every per-capability request timeout, in milliseconds. Leave unset: each capability gets a budget that fits its cost. |
MCP_Environment variable | Optional | Inbound messages per minute from the editor before the server disconnects. Default: 600 |
LOG_Environment variable | Optional | Log level. Logs go to stderr. Default: info |
From the publisher's entry in the official MCP Registry. Required settings are already in the install config below as placeholders.
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Security check
ANo download-and-run commands, hidden instructions or signs of sending keys out were found.
Checked automatically: README.md, package.json. This looks for known risky patterns and is not a full audit. How grades work
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unreal-engine-mcp: common questions
How do I install unreal-engine-mcp?
In Claude Code run claude mcp add unreal-engine-mcp -e UE_PROJECT_PATH="C:/Users/YourName/Documents/Unreal Projects/MyGame" -- npx -y unreal-engine-mcp-server. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is unreal-engine-mcp the official server?
unreal-engine-mcp is a community project by ChiR24, not verified by a company domain.
Is unreal-engine-mcp free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is unreal-engine-mcp safe to use?
It scores 87 of 100. Grades: maintenance A, licence A, quality A. Security check: grade A, no risky patterns found in the files checked. Review the code before you install. How grades work.
What are alternatives to unreal-engine-mcp?
Similar MCP servers: Jitsu, Oh My Posh Validator, World Monitor, mcp.
Does unreal-engine-mcp work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.
