Unity ProBuilder AI
AI-powered 3D modeling tools for Unity ProBuilder. Enables AI assistants to create and manipulate editable meshes through natural language commands. Create primitive shapes, extrude faces, bevel edges, apply materials, merge objects, and perform adva
What is Unity ProBuilder AI?
Unity ProBuilder AI is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to ai-powered 3d modeling tools for unity probuilder. enables ai assistants to create and manipulate editable meshes through natural language commands. create primitive shapes, extrude faces, bevel edges...
AI-powered 3D modeling tools for Unity ProBuilder. Enables AI assistants to create and manipulate editable meshes through natural language commands. Create primitive shapes, extrude faces, bevel edges, apply materials, merge objects, and perform adva
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- AI-powered 3D modeling tools for Unity ProBuilder. Enables A
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx unity-ai-probuilderConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Unity ProBuilder AI
Unity AI ProBuilder is a C# MCP server package that enables AI assistants to create and manipulate 3D meshes in Unity using ProBuilder through natural language commands. It exposes tools for generating primitive shapes, extruding faces, beveling edges, deleting faces, assigning materials, merging objects, bridging edges, and querying mesh data — all without manually clicking in the Unity editor. Game developers and 3D artists can describe geometry operations conversationally and have Claude or Cursor execute them directly in their Unity scene via the ProBuilder API.
Prerequisites
- Unity 2021.3 LTS or newer with ProBuilder installed (via Unity Package Manager)
- The Unity MCP bridge package (com.ivanmurzak.unity.mcp) installed in your Unity project
- An MCP-compatible client such as Claude Desktop or Cursor configured to connect to the Unity MCP bridge
- OpenUPM-CLI installed if using the command-line installation method
Install ProBuilder in your Unity project
Open the Unity Package Manager (Window > Package Manager), search for ProBuilder, and install it. ProBuilder must be installed before adding the AI ProBuilder package.
Install the Unity AI ProBuilder package via OpenUPM
Use the OpenUPM CLI to add the package to your Unity project. This also handles the com.ivanmurzak.unity.mcp dependency automatically.
openupm add com.ivanmurzak.unity.mcp.probuilderOr install via Unity Package import
Alternatively, download the .unitypackage file from the GitHub releases page and import it into Unity via Assets > Import Package > Custom Package.
Configure the Unity MCP bridge in your MCP client
The Unity MCP bridge runs a local server inside the Unity Editor. Add it to your MCP client configuration pointing to the local bridge endpoint. Refer to the com.ivanmurzak.unity.mcp documentation for the exact port.
{
"mcpServers": {
"unity-probuilder": {
"command": "npx",
"args": ["unity-ai-probuilder"],
"env": {}
}
}
}Open your Unity project and start the MCP bridge
With Unity open and the packages installed, start the MCP bridge from the Unity Editor (check the Unity MCP documentation for the menu location). Then restart your MCP client so it connects to the running bridge.
Unity ProBuilder AI Examples
Client configuration
Example claude_desktop_config.json for the Unity AI ProBuilder MCP server.
{
"mcpServers": {
"unity-probuilder": {
"command": "npx",
"args": ["unity-ai-probuilder"],
"env": {}
}
}
}Prompts to try
Example natural language commands for 3D modeling in Unity ProBuilder.
- "Create a cube primitive with a width of 2, height of 3, and depth of 2 in my Unity scene."
- "Extrude the top face of the selected ProBuilder mesh by 1 unit."
- "Bevel all edges of the selected object with a distance of 0.1."
- "Apply the 'WoodFloor' material to the bottom face of the mesh."
- "Merge all selected ProBuilder objects into one mesh."
- "Delete the front face of the current ProBuilder mesh."
- "Get the vertex and face count of the selected mesh."Troubleshooting Unity ProBuilder AI
Package not found in OpenUPM or Unity Package Manager
Add the OpenUPM registry to your Unity project. In Unity, go to Edit > Project Settings > Package Manager and add 'https://package.openupm.com' as a scoped registry with scope 'com.ivanmurzak'. Then retry the openupm add command.
ProBuilder tools have no effect or return errors about missing ProBuilder
Ensure ProBuilder is installed in the Unity project via Window > Package Manager before installing com.ivanmurzak.unity.mcp.probuilder. The ProBuilder package must be present for the AI tools to find the ProBuilder API.
MCP client cannot connect to the Unity bridge
The Unity Editor must be open with the MCP bridge actively running. Check the Unity console for bridge startup messages. If the bridge uses a specific port, ensure it matches the configuration in your MCP client and that no firewall is blocking local connections.
Frequently Asked Questions about Unity ProBuilder AI
What is Unity ProBuilder AI?
Unity ProBuilder AI is a Model Context Protocol (MCP) server that ai-powered 3d modeling tools for unity probuilder. enables ai assistants to create and manipulate editable meshes through natural language commands. create primitive shapes, extrude faces, bevel edges, apply materials, merge objects, and perform adva It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Unity ProBuilder AI?
Follow the installation instructions on the Unity ProBuilder AI GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Unity ProBuilder AI?
Unity ProBuilder AI works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Unity ProBuilder AI free to use?
Yes, Unity ProBuilder AI is open source and available under the Apache-2.0 license. You can use it freely in both personal and commercial projects.
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Set Up Unity ProBuilder AI in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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