Unity-AI-ProBuilder

Overview

Unity AI ProBuilder is an MCP server that extends Unity's ProBuilder with AI-powered capabilities. It allows AI assistants to perform complex 3D modeling operations through natural language commands, including creating primitive shapes, extruding faces, beveling edges, applying materials, merging objects, and advanced mesh operations. The server supports semantic face selection by direction for intuitive editing, making it perfect for rapid prototyping and procedural geometry generation.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• probuilder-create-shape

  Create primitive shapes (cube, sphere, cylinder, etc.)

  Try:Create a cubeTry:Add a sphere to the sceneTry:Generate a cylinder
• probuilder-get-mesh-info

  Read mesh data (faces, vertices, edges)

  Try:Show mesh informationTry:List all verticesTry:Get face data
• probuilder-extrude

  Extrude faces with various methods

  Try:Extrude these faces forwardTry:Push selected faces outwardTry:Create depth in these faces
• probuilder-bevel

  Bevel edges

  Try:Bevel these edgesTry:Add chamfer to sharp cornersTry:Round off these edges
• probuilder-delete-faces

  Delete faces by index or direction

  Try:Remove bottom facesTry:Delete these specific facesTry:Clear faces facing downward
• probuilder-set-face-material

  Apply materials to specific faces

  Try:Apply wood material to top facesTry:Set concrete texture for side facesTry:Add metal material to these faces
• probuilder-flip-normals

  Reverse face normals

  Try:Flip these face normalsTry:Correct inside-out facesTry:Reverse vertex orientation
• probuilder-set-pivot

  Change mesh pivot point

  Try:Move pivot to centerTry:Set pivot at baseTry:Adjust pivot point
• probuilder-merge-objects

  Combine multiple ProBuilder meshes

  Try:Merge these objectsTry:Combine all meshesTry:Join these shapes together
• probuilder-subdivide-edges

  Add vertices to edges

  Try:Subdivide these edgesTry:Add detail to edgesTry:Split edges with new vertices
• probuilder-connect-edges

  Connect edges with new geometry

  Try:Connect these edgesTry:Bridge between edge selectionsTry:Link these edge loops
• probuilder-bridge

  Bridge between edge selections

  Try:Create a bridge between these edgesTry:Connect separate edge loopsTry:Link these edge selections

Comparable tools

Installation

openupm add com.ivanmurzak.unity.mcp.probuilder

{
  "mcpServers": {
    "unity-probuilder": {
      "command": "dotnet",
      "args": ["run", "--project", "/path/to/Unity-AI-ProBuilder"],
      "env": {}
    }
  }
}

FAQ

What Unity versions are supported?

Unity AI ProBuilder supports Unity 2022.3.62f3, 2023.2.22f1, and 6000.3.1f1 in edit mode, play mode, and standalone builds.

How do I use the AI tools?

Install the package in Unity, then use natural language commands through your MCP client to manipulate 3D meshes. Tools include creating shapes, extruding faces, beveling edges, and more.

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