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Installation

Requirements​

  • Unreal Engine 5.3 or later
  • Win64 or Linux
  • For Claude Code mode: Claude Code CLI installed and authenticated on your machine
  • For Direct API mode: An Anthropic API key

Install the plugin​

From the Marketplace​

  1. Purchase Claude Assistant on Fab
  2. In the Epic Games Launcher, go to Library → Vault
  3. Find Claude Assistant and click Install to Engine or Add to Project

Enable the plugin​

  1. In the Unreal Engine editor, go to Edit → Plugins
  2. Search for Claude Assistant
  3. Check Enabled
  4. Click Restart Now

After restart, a Claude button appears in editor toolbars (Blueprint Editor, DataTable Editor, etc.).

Python Script Plugin

Claude Assistant depends on the Python Script Plugin, which ships with Unreal Engine. It is enabled automatically as a dependency. If you disabled it manually, re-enable it from the Plugins window.

Next step​

Configure the plugin to connect it to Claude.