@createlex/mcp

The dedicated CreateLex MCP server for MCP-compatible AI clients controlling Unreal Engine.

This package is intentionally MCP-only. Human and automation commands should use @createlex/cli.

It does not expose login, status, connect, config, tools, or exec. Authentication is deliberately owned by the separate CLI.

Requirements

• Node.js 18+
• Python 3.10+
• Unreal Engine 5.x with a supported connection backend enabled
• A CreateLex account with an active paid subscription

MCP configuration

{
  "mcpServers": {
    "createlex-unreal": {
      "command": "npx",
      "args": ["-y", "@createlex/[email protected]"]
    }
  }
}

Authenticate once with the CLI before starting the MCP server:

npx -y @createlex/[email protected] login

Configure a supported AI client with:

npx -y @createlex/[email protected] setup

Supported setup targets include Claude Code, Codex, Cursor, Windsurf, Claude Desktop, VS Code, Gemini CLI, Antigravity, Kiro, Trae, and Augment. You can also choose one explicitly, for example:

npx -y @createlex/[email protected] setup codex

The server uses stdio by default. For clients that require a TCP transport:

npx -y @createlex/[email protected] --port 38080

An active paid CreateLex subscription is required. Every protected tool call uses the CreateLex SaaS control plane and signed, single-use authorization.

The server can connect through the existing Native CreateLexGenAI plugin, Web Remote Control, or Python Remote Execution. Installing this package does not change the Native plugin or its customer workflow.

Migrating from the combined package

Replace:

npx @createlex/createlexgenai serve

with:

npx -y @createlex/[email protected]

Copyright CreateLex LLC. All rights reserved.