How do I install Unreal ?

Unreal is a local plugin. Install it using npm package: unreal-engine-mcp-server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Unreal safe to use?

Unreal scored 6.3/10 (moderate risk) in MCP Marketplace's automated security scan. It has 2 high or critical findings to review. It's listed, but review the security report on this page before installing.

What credentials does Unreal need?

Unreal requires the following credentials or environment variables: UE_PROJECT_PATH, MCP_AUTOMATION_CAPABILITY_TOKEN, MCP_AUTOMATION_PORT, MCP_AUTOMATION_HOST, MCP_AUTOMATION_ALLOW_NON_LOOPBACK, MCP_AUTOMATION_USE_TLS, MCP_ADDITIONAL_PATH_PREFIXES, MCP_CONNECTION_TIMEOUT_MS, MCP_REQUEST_TIMEOUT_MS, MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE, LOG_LEVEL. You can find setup instructions on the server detail page.

What AI apps work with Unreal ?

Unreal uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Unreal MCP Server

by ChiR24

Developer ToolsModerate6.3MCP RegistryLocal

Free

Server data from the Official MCP Registry

Automate the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more.

About

Automate the Unreal Editor (UE 5.0-5.8): levels, Blueprints, UI, materials, VFX and more.

Security Report

6.3

Moderate6.3Moderate Risk

Valid MCP server (1 strong, 1 medium validity signals). 4 known CVEs in dependencies (1 critical, 1 high severity) Imported from the Official MCP Registry. Trust signals: trusted author (4/4 approved). 1 finding(s) downgraded by scanner intelligence.

4 files analyzed · 5 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

What You'll Need

Set these up before or after installing:

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.Optional

Environment variable: UE_PROJECT_PATH

Capability token to present to the editor. Only needed when the server cannot read the project folder, for example over LAN.Required

Environment variable: MCP_AUTOMATION_CAPABILITY_TOKEN

Editor WebSocket port. Default: the first Listen Ports entry in the project settings, else 8090.Optional

Environment variable: MCP_AUTOMATION_PORT

Editor host to connect to. A LAN address also needs MCP_AUTOMATION_ALLOW_NON_LOOPBACK=true and Allow Non Loopback in the plugin settings.Optional

Environment variable: MCP_AUTOMATION_HOST

SECURITY: allow a non-loopback MCP_AUTOMATION_HOST. Enable only on a trusted network.Optional

Environment variable: MCP_AUTOMATION_ALLOW_NON_LOOPBACK

Connect with wss:// instead of ws://.Optional

Environment variable: MCP_AUTOMATION_USE_TLS

Extra content roots to allow besides /Game, /Engine, /Script, /Temp and /Niagara, comma-separated. Example: /MyPluginContent/Optional

Environment variable: MCP_ADDITIONAL_PATH_PREFIXES

How long to wait for the editor connection, in milliseconds.Optional

Environment variable: MCP_CONNECTION_TIMEOUT_MS

Overrides every per-capability request timeout, in milliseconds. Leave unset: each capability gets a budget that fits its cost.Optional

Environment variable: MCP_REQUEST_TIMEOUT_MS

Inbound messages per minute from the editor before the server disconnects.Optional

Environment variable: MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE

Log level. Logs go to stderr.Optional

Environment variable: LOG_LEVEL

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-chir24-unreal-engine-mcp": {
      "env": {
        "LOG_LEVEL": "your-log-level-here",
        "UE_PROJECT_PATH": "your-ue-project-path-here",
        "MCP_AUTOMATION_HOST": "your-mcp-automation-host-here",
        "MCP_AUTOMATION_PORT": "your-mcp-automation-port-here",
        "MCP_AUTOMATION_USE_TLS": "your-mcp-automation-use-tls-here",
        "MCP_REQUEST_TIMEOUT_MS": "your-mcp-request-timeout-ms-here",
        "MCP_CONNECTION_TIMEOUT_MS": "your-mcp-connection-timeout-ms-here",
        "MCP_ADDITIONAL_PATH_PREFIXES": "your-mcp-additional-path-prefixes-here",
        "MCP_AUTOMATION_CAPABILITY_TOKEN": "your-mcp-automation-capability-token-here",
        "MCP_AUTOMATION_ALLOW_NON_LOOPBACK": "your-mcp-automation-allow-non-loopback-here",
        "MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE": "your-mcp-automation-max-messages-per-minute-here"
      },
      "args": [
        "-y",
        "unreal-engine-mcp-server"
      ],
      "command": "npx"
    }
  }
}

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4.8

Local

mcp-creator-python

Free

by mcp-marketplace · Developer Tools

Create, build, and publish Python MCP servers to PyPI — conversationally.

Unreal MCP Server

About

Security Report

Findings (5)Action required

What You'll Need

How to Install

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