ue-mcp

Overview

UE-MCP is a comprehensive Model Context Protocol server that provides AI assistants with deep read/write access to Unreal Editor. It features 19 tool categories covering 450+ actions, enabling natural language programming of everything from blueprints and materials to animation, VFX, AI, and networking. The architecture includes a TypeScript/Node.js MCP server that communicates with a C++ bridge plugin inside Unreal Editor via WebSocket JSON-RPC, allowing AI to manipulate UE projects programmatically.

Try asking AI

After installing, here are 4 things you can ask your AI assistant:

• projectproject(action="get_status")

  Get Unreal Engine project status and connection info

  Try:Check the project statusTry:Verify connection to UE editor
• levellevel(action="get_outliner")

  Inspect and manipulate level hierarchy and actors

  Try:Show me what's in the levelTry:List all actors in the current level
• assetasset(action="list")

  Browse and manage project assets

  Try:List all assets in the projectTry:Find all texture assets
• blueprint

  Read and modify Blueprint graphs and nodes

  Try:Add a print node to the main event graphTry:Compile all blueprints in the project
• material

  Create and edit materials and material instances

  Try:Create a new material with metallic propertiesTry:Edit the base color of the material
• animation

  Work with animation blueprints, montages, and blendspaces

  Try:Preview the montage sequenceTry:Edit the blend space parameters
• vfx

  Control Niagara systems and particle emitters

  Try:Spawn a Niagara emitter at locationTry:Modify particle parameters
• landscape

  Sculpt terrain and paint landscape layers

  Try:Raise the terrain around the player startTry:Add a grass layer to the landscape
• pcg

  Author and execute Procedural Content Generation graphs

  Try:Run the PCG graph to generate foliageTry:Modify the PCG graph parameters
• gas

  Manage Gameplay Ability System attributes, abilities, and effects

  Try:Create a new gameplay abilityTry:Modify character attributes
• editor

  Control editor settings, viewport, and build pipeline

  Try:Build the project for WindowsTry:Set the editor to game mode
• reflection

  Introspect classes, structs, enums, and gameplay tags

  Try:Find all classes derived from ActorTry:List all available gameplay tags

Note: Tool names extracted from category descriptions and examples in documentation. The README mentions 19 tools covering 450+ actions, but doesn't list all tools explicitly.

Comparable tools

Installation

npx ue-mcp init

{
  "mcpServers": {
    "ue-mcp": {
      "command": "npx",
      "args": ["ue-mcp", "C:/path/to/MyGame.uproject"]
    }
  }
}

FAQ

What versions of Unreal Engine are supported?

UE-MCP supports Windows with UE 5.4–5.7 and Linux with UE 5.6+. Requires PythonScriptPlugin (ships with UE 4.26+).

Is UE-MCP free to use?

Individuals, students, and educational institutions can use UE-MCP free under BUSL-1.1's Additional Use Grant. Game studios and commercial entities require a commercial license.

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