workflowstacks
mcp-server

Unity-MCP: AI-Powered Unity Tools

Automate Unity development with AI skills and CLI tools. For founders using Unity Engine and C#.

From the repo · “AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C# method may be turned into a tool by a single line. Works with Claude Code, Gemini, Copilot, Cursor and any other absolutely for free.”

4,512 stars+51★ this week401 forksC#Guide quality 8/10 · reviewed Jul 9Updated 10/22/2026100% free · open source
What it does

Unity-MCP automates Unity development with AI skills and CLI tools, allowing founders to turn any C# method into a tool with a single line of code.

When to use it
  • •When you need to automate repetitive tasks in your Unity project
  • •When you want to integrate AI-powered tools into your Unity development workflow
  • •When you need to efficiently test and develop your Unity project with advanced CLI tools
Ready-to-paste prompt
Turn a C# method into a tool by adding a single line of code, for example: `[McpTool] public void MyTool(){...}`
Heads up: Ensure you have the necessary C# and Unity environment set up and configured correctly, as Unity-MCP relies on these to function properly
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/unity-mcp && curl -fsSL https://workflowstacks.com/api/skills/unity-mcp/claude-skill -o ~/.claude/skills/unity-mcp/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Unity-MCP: AI-Powered Unity Tools works
Codeflow
Free to inspect

Unity-MCP: AI-Powered Unity Tools is a very large C# project (~76k lines across 463 code files, plus 210 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit this month, Apache-2.0 license, has a test suite.

Size
Very large codebase
~76k lines · 463 code files · days to read — use, don't read
Setup
Developer setup
A real software project. Use it via its install path; don't expect to read it all.
Runs on
C#
No API keys detected
C# 82%TypeScript 17%PowerShell 1%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    CLAUDE.md
    The instructions the AI actually follows
  3. 3
    commands/bump-version.ps1
    Inside commands/ — an example of what the AI is told to do
What's in each folder
commands/Prompts, skills & agent definitions11 files
cli/Command-line entry points111 files
docs/Documentation73 files
Unity-MCP-Plugin/Folder1531 files
Unity-Tests/Folder708 files
Installer/Folder76 files
memory/Folder2 files
.github/CI / automation (GitHub Actions)18 files
READMEHas testsDocumentedCI checksApache-2.0 licenseUpdated this month
Quick Actions
Details
Creator
IvanMurzak
Language
C#
Category
mcp-server
Published
4/2/2025

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Featured on WorkflowStacks
[![Featured on WorkflowStacks](https://workflowstacks.com/api/badge/unity-mcp.svg)](https://workflowstacks.com/skills/unity-mcp?utm_source=github&utm_medium=badge)
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