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MCP server for Unreal Engine 5 with 17 tools for game development automation.
About
MCP server for Unreal Engine 5 with 17 tools for game development automation.
What You'll Need
Set these up before or after installing:
Logging level: debug, info, warn, error (default: info)
Environment variable: LOG_LEVEL
Route standard output to standard error to avoid protocol corruption (default: true)
Environment variable: MCP_ROUTE_STDOUT_LOGS
Absolute path to your Unreal .uproject file
Environment variable: UE_PROJECT_PATH
Path to UnrealEditor-Cmd.exe (optional)
Environment variable: UE_EDITOR_EXE
Directory to save screenshots (optional)
Environment variable: UE_SCREENSHOT_DIR
Automation bridge WebSocket port (default: 8091)
Environment variable: MCP_AUTOMATION_PORT
Automation bridge WebSocket host (default: 127.0.0.1). Set to 0.0.0.0 for LAN access (requires MCP_AUTOMATION_ALLOW_NON_LOOPBACK=true)
Environment variable: MCP_AUTOMATION_HOST
SECURITY: Allow binding to non-loopback addresses (e.g., 0.0.0.0) for LAN access. Only enable if you understand the security implications. (default: false)
Environment variable: MCP_AUTOMATION_ALLOW_NON_LOOPBACK
Run as client connecting to UE (false) or server listening for UE (true) (default: false)
Environment variable: MCP_AUTOMATION_CLIENT_MODE
Use wss:// for the automation bridge client connection (default: false)
Environment variable: MCP_AUTOMATION_USE_TLS
Connection timeout in milliseconds (default: 5000)
Environment variable: MCP_CONNECTION_TIMEOUT_MS
Request timeout in milliseconds (default: 30000)
Environment variable: MCP_REQUEST_TIMEOUT_MS
Max inbound automation bridge messages per minute before disconnect (default: 600)
Environment variable: MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE
Max inbound automation request messages per minute before disconnect (default: 120)
Environment variable: MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-chir24-unreal-engine-mcp": {
"env": {
"UE_HOST": "your-ue-host-here",
"UE_RC_WS_PORT": "your-ue-rc-ws-port-here",
"UE_RC_HTTP_PORT": "your-ue-rc-http-port-here"
},
"args": [
"-y",
"unreal-engine-mcp-server"
],
"command": "npx"
}
}
}Security Report
10.0
Low Risk10.0Low RiskValid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. Trust signals: trusted author ChiR24 (5/5 approved). 1 finding(s) downgraded by scanner intelligence.
Scanned 3 files · 1 finding
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
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