CoplayDev/unity-mcp

Create your Unity apps with LLMs. MCP for Unity bridges AI assistants — Claude, Codex, VS Code, local LLMs, and more — with your Unity Editor via Model Context Protocol. Give your LLM the tools to manage assets, control scenes, edit scripts, run tests, and automate your game dev workflows.

---

---

What it does

Control the Unity Editor in natural language from any MCP client — create scenes & GameObjects, edit C# scripts, manage assets, run tests, profile, and build. 47 focused MCP tool entrypoints, any client, free & MIT.

Browse the full tool catalog →

---

Quickstart

Requirements: Unity 2021.3 LTS → 6.x · Python 3.10+ (via uv). Works with any MCP client — Claude Desktop & Code, Cursor, VS Code, Windsurf, Cline, Gemini CLI, and more.

1. Install — Unity → Package Manager → Add from git URL: https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main  _(pin #v10.0.0 for this release, or openupm add com.coplaydev.unity-mcp)_ 2. Configure — Window → MCP for Unity → Configure All Detected Clients. 3. Prompt — "Create a cube at the origin and add a Rigidbody." The cube appears in seconds.

---

Community

• Discord — chat with maintainers and other contributors
• Issues — bugs and feature requests
• Discussions — design ideas and broader questions
• Security: see SECURITY.md for private reporting

Contributing

See CONTRIBUTING.md. Branch off beta, not main. The full dev setup, testing, and release process live in the Contributing docs.

Advanced

• Multiple Unity instances — Multi-Instance Routing
• Tool groups (vfx / animation / ui / testing / etc.) — Tool Groups
• v10 asset generation and upgrade notes — v10 Migration
• Roslyn script validation — Roslyn Validation
• Remote-hosted server with auth — Remote Server Auth

Star History

Citation

If MCP for Unity helped your research, please cite it.

@inproceedings{wu2025mcpunity,
  author    = {Wu, Shutong and Barnett, Justin P.},
  title     = {{MCP-Unity}: {Protocol-Driven} Framework for Interactive {3D} Authoring},
  year      = {2025},
  isbn      = {9798400721366},
  publisher = {Association for Computing Machinery},
  address   = {New York, NY, USA},
  url       = {https://doi.org/10.1145/3757376.3771417},
  doi       = {10.1145/3757376.3771417},
  series    = {SA Technical Communications '25}
}

Unity AI Tools by Aura

Aura offers 2 AI tools for Unity:

• MCP for Unity is available freely under the MIT license.
• Aura for Unity is a premium Unity/Unreal AI assistant built for game devs.

Disclaimer

This project is a free and open-source tool for the Unity Editor, and is not affiliated with Unity Technologies.

---

License: MIT — see LICENSE.