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.

What credentials does Unreal need?

Unreal requires the following credentials or environment variables: LOG_LEVEL, MCP_ROUTE_STDOUT_LOGS, UE_PROJECT_PATH, UE_EDITOR_EXE, UE_SCREENSHOT_DIR, MCP_AUTOMATION_PORT, MCP_AUTOMATION_HOST, MCP_AUTOMATION_ALLOW_NON_LOOPBACK, MCP_AUTOMATION_CLIENT_MODE, MCP_AUTOMATION_USE_TLS, MCP_CONNECTION_TIMEOUT_MS, MCP_REQUEST_TIMEOUT_MS, MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE, MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE. 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 ToolsModerate6.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

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)Optional

Environment variable: LOG_LEVEL

Route standard output to standard error to avoid protocol corruption (default: true)Optional

Environment variable: MCP_ROUTE_STDOUT_LOGS

Absolute path to your Unreal .uproject fileOptional

Environment variable: UE_PROJECT_PATH

Path to UnrealEditor-Cmd.exe (optional)Optional

Environment variable: UE_EDITOR_EXE

Directory to save screenshots (optional)Optional

Environment variable: UE_SCREENSHOT_DIR

Automation bridge WebSocket port (default: 8091)Optional

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)Optional

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)Optional

Environment variable: MCP_AUTOMATION_ALLOW_NON_LOOPBACK

Run as client connecting to UE (false) or server listening for UE (true) (default: false)Optional

Environment variable: MCP_AUTOMATION_CLIENT_MODE

Use wss:// for the automation bridge client connection (default: false)Optional

Environment variable: MCP_AUTOMATION_USE_TLS

Connection timeout in milliseconds (default: 5000)Optional

Environment variable: MCP_CONNECTION_TIMEOUT_MS

Request timeout in milliseconds (default: 30000)Optional

Environment variable: MCP_REQUEST_TIMEOUT_MS

Max inbound automation bridge messages per minute before disconnect (default: 600)Optional

Environment variable: MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE

Max inbound automation request messages per minute before disconnect (default: 120)Optional

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": {
        "LOG_LEVEL": "your-log-level-here",
        "UE_EDITOR_EXE": "your-ue-editor-exe-here",
        "UE_PROJECT_PATH": "your-ue-project-path-here",
        "UE_SCREENSHOT_DIR": "your-ue-screenshot-dir-here",
        "MCP_AUTOMATION_HOST": "your-mcp-automation-host-here",
        "MCP_AUTOMATION_PORT": "your-mcp-automation-port-here",
        "MCP_ROUTE_STDOUT_LOGS": "your-mcp-route-stdout-logs-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_AUTOMATION_CLIENT_MODE": "your-mcp-automation-client-mode-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",
        "MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE": "your-mcp-automation-max-automation-requests-per-minute-here"
      },
      "args": [
        "-y",
        "unreal-engine-mcp-server"
      ],
      "command": "npx"
    }
  }
}

Security Report

6.2

Moderate6.2Moderate Risk

This is a well-architected MCP server for Unreal Engine automation with appropriate security practices. The server requires proper authentication through the Unreal Engine plugin, has robust input validation, and uses secure configuration management via environment variables. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue.

3 files analyzed · 7 issues found

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

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

network_websocket

Check that this permission is expected for this type of plugin.

env_vars

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

process_spawn

Check that this permission is expected for this type of plugin.

Reviews

No reviews yet

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What You'll Need

Set these up before or after installing:

Logging level: debug, info, warn, error (default: info)Optional

Environment variable: LOG_LEVEL

Route standard output to standard error to avoid protocol corruption (default: true)Optional

Environment variable: MCP_ROUTE_STDOUT_LOGS

Absolute path to your Unreal .uproject fileOptional

Environment variable: UE_PROJECT_PATH

Path to UnrealEditor-Cmd.exe (optional)Optional

Environment variable: UE_EDITOR_EXE

Directory to save screenshots (optional)Optional

Environment variable: UE_SCREENSHOT_DIR

Automation bridge WebSocket port (default: 8091)Optional

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)Optional

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)Optional

Environment variable: MCP_AUTOMATION_ALLOW_NON_LOOPBACK

Run as client connecting to UE (false) or server listening for UE (true) (default: false)Optional

Environment variable: MCP_AUTOMATION_CLIENT_MODE

Use wss:// for the automation bridge client connection (default: false)Optional

Environment variable: MCP_AUTOMATION_USE_TLS

Connection timeout in milliseconds (default: 5000)Optional

Environment variable: MCP_CONNECTION_TIMEOUT_MS

Request timeout in milliseconds (default: 30000)Optional

Environment variable: MCP_REQUEST_TIMEOUT_MS

Max inbound automation bridge messages per minute before disconnect (default: 600)Optional

Environment variable: MCP_AUTOMATION_MAX_MESSAGES_PER_MINUTE

Max inbound automation request messages per minute before disconnect (default: 120)Optional

Environment variable: MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE

{ "mcpServers": { "io-github-chir24-unreal-engine-mcp": { "env": { "LOG_LEVEL": "your-log-level-here", "UE_EDITOR_EXE": "your-ue-editor-exe-here", "UE_PROJECT_PATH": "your-ue-project-path-here", "UE_SCREENSHOT_DIR": "your-ue-screenshot-dir-here", "MCP_AUTOMATION_HOST": "your-mcp-automation-host-here", "MCP_AUTOMATION_PORT": "your-mcp-automation-port-here", "MCP_ROUTE_STDOUT_LOGS": "your-mcp-route-stdout-logs-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_AUTOMATION_CLIENT_MODE": "your-mcp-automation-client-mode-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", "MCP_AUTOMATION_MAX_AUTOMATION_REQUESTS_PER_MINUTE": "your-mcp-automation-max-automation-requests-per-minute-here" }, "args": [ "-y", "unreal-engine-mcp-server" ], "command": "npx" } } }

Security Report

6.2

Moderate6.2Moderate Risk

3 files analyzed · 7 issues found

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

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

network_websocket

Check that this permission is expected for this type of plugin.

env_vars

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

process_spawn

Check that this permission is expected for this type of plugin.

Unreal MCP Server

About

What You'll Need

How to Install

Security Report

Permissions Required

Findings (7)

Reviews

No reviews yet

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Unreal MCP Server

About

What You'll Need

How to Install

Security Report

Permissions Required

Findings (7)

Reviews

No reviews yet

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