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Unity Code MCP Server

@hackerzhuli

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

hackerzhuli

Submitted by

hackerzhuli

About Unity Code MCP Server

Enables AI agents to compile code and run tests in Unity Editor.

#unity3d#game-development

Unity Code MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "unity-code": {
      "command": "/path/to/unity-code-mcp",
      "env": {
        "UNITY_PROJECT_PATH": "/path/to/your/unity/project"
      }
    }
  }
}

Unity Code MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Unity Code?

Unity Code is an MCP server that provides two tools—Asset Database Refresh and Test Execution—for autonomous AI-driven Unity code development. It is designed for developers using Unity 6.0 or higher who want AI agents to write, compile, and test code without human intervention.

How to use Unity Code?

Install the Visual Studio Code Editor Unity package, obtain the binary (download a release for Windows or build from source with Rust), then configure your AI assistant (e.g., Claude Desktop, Cursor, Trae, or VS Code with MCP extension) by adding a JSON entry with the unity-code command and the UNITY_PROJECT_PATH environment variable set to the absolute path of your Unity project.

Key features of Unity Code?

  • Refreshes Unity asset database and returns compile errors
  • Runs EditMode and PlayMode tests with detailed stack traces
  • Handles Unity domain reload gracefully
  • Supports fully autonomous AI agent development workflows
  • Requires Unity 6.0 or higher
  • Cross-platform code (only Windows tested)

Use cases of Unity Code?

  • An AI agent creates a player controller with WASD movement and jumping, then writes and runs tests to ensure all pass.
  • A developer iterates quickly by having the AI fix compilation errors and re-run tests automatically.
  • Automated test execution and failure analysis in CI pipelines for Unity projects.
  • AI-driven bug fixing: the agent detects test failures, analyzes logs, and applies corrections without manual input.

Frequently asked questions

1

What tools does the server provide?

Two tools: `refresh_asset_database` (triggers Unity compilation and returns non-compile errors) and `run_tests` (executes tests with comprehensive reporting for both EditMode and PlayMode).

2

What are the prerequisites?

Unity 6.0 or higher, the Rust toolchain (to build from source), and CMake with a C compiler (for building dependencies). A pre-built binary is available for Windows.

3

Which platforms are supported?

The code is cross-platform, but only Windows has been built and tested.

Comments

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