Unity Mcp
Unity Mcp acts as a bridge between AI assistants and your Unity Editor. Give your LLM tools to manage assets, control scenes, edit scripts, and automate tasks within Unity.
Last verified:
What is Unity Mcp?
Unity Mcp — Coplay MCP is a Model Context Protocol server that bridges your AI coding assistant (like Claude Code, Cursor, VS Code, Cline, or Antigravity) to Unity. It gives your existing AI subscription the same powerful Unity tools that Coplay uses internally, allowing AI agents to make changes directly in the Unity Editor. This enables you to keep your preferred AI subscription while accessing Unity-specific capabilities.
The tool provides access to Coplay's full 86-tool Unity toolset, including the ability to create and modify GameObjects and scenes, manage prefabs, materials, and scripts, and generate 3D models and sprites. You can control Unity through natural language commands from your favorite MCP-compatible AI assistant, performing actions like managing assets, controlling scenes, editing scripts, running tests, and automating workflows.
Coplay MCP is designed for Unity game developers who already use AI coding assistants and want to integrate them with Unity. It works with Unity 2022 and newer, requires Python 3.11 or higher with uv installed, and is currently free during beta. The tool is ideal for developers who want to reduce context switching, automate repetitive Unity tasks, and accelerate game creation through AI orchestration.
Coplay (the parent AI assistant) integrates directly inside the Unity Editor and offers features like scene analysis for optimization suggestions, code generation tailored to project needs, documentation references, learning support for Unity concepts, and an Action Recorder to teach Coplay specific tasks. It also supports Orchestrator Mode for executing multi-step tasks from a single game design document.
Unity Mcp pricing
Pricing model: Freemium
Free while in beta. Coplay MCP is currently offered at no cost during its public beta period. The tool is part of Coplay's mission to empower developers, and the company has opened public beta access to all developers via their Discord channel. No paid tier pricing details are publicly available yet as the product remains in beta.
Unity Mcp pros
- Works with existing AI subscriptions (Claude, Cursor, VS Code, Cline, Antigravity)
- Free during beta period
- Access to 86 Unity tools from your AI assistant
- Creates and modifies GameObjects and scenes directly
- Manages prefabs, materials, and scripts via AI
- 3D model and sprite generation capabilities
- Natural language control of Unity editor
- Open source and actively maintained by Coplay
- Integrates directly inside Unity Editor
- No context switching between tools
- Orchestrator Mode for multi-step task execution
- Action Recorder to teach custom workflows
- Scene analysis with optimization suggestions
- Code generation tailored to project needs
- Works with Unity 2022 and newer
- Supports long-running asynchronous workflows
- Backed by experienced game development team
Unity Mcp cons
- Requires Python 3.11 or higher installed separately
- Requires uv package manager installation
- Only works with Unity 2022 and newer (Unity 2021 has UI warnings)
- Currently in beta (not yet production-ready)
- Requires active internet connection
- Setup requires editing config files for some AI clients
- 12-minute timeout may be too long for simple tasks
- Depends on Coplay plugin being installed and authenticated first
Frequently asked questions about Unity Mcp
What is Coplay MCP?
Coplay MCP is a Model Context Protocol server that bridges your AI coding assistant to Unity. It gives Claude, Cursor, VS Code, or any MCP-compatible AI assistant the same powerful Unity tools that Coplay uses internally, allowing AI agents to make changes directly in the Unity Editor.
Do I need to switch my AI subscription?
No. You can keep your existing AI subscription (Claude Code, Cursor, VS Code, Cline, Antigravity, etc.). Coplay MCP lets you leverage that subscription with the best possible bridge to Unity without switching providers.
What AI assistants work with Coplay MCP?
Coplay MCP integrates with any MCP-compatible AI assistant, including Claude Code, Cursor, VS Code, Cline, Antigravity, and Codex CLI.
What Unity versions are supported?
Coplay works with Unity 2022 and newer. There is also a beta-unity-2021 branch for Unity 2021, though it may show some UI warnings that can be safely ignored.
What are the system requirements?
You need Unity Editor installed, Git installed, an active internet connection, Python 3.11 or higher, and uv (Python package manager) installed on your machine.
How do I install Coplay MCP?
First install the Coplay plugin via Unity Package Manager using the git URL. Then authenticate Coplay. Finally, add the Coplay MCP server configuration to your AI client (Claude Desktop, Cursor, VS Code, etc.) using the command: uvx --python >=3.11 coplay-mcp-server@latest
What tools does Coplay MCP provide?
Coplay MCP provides access to Coplay's full 86-tool Unity toolset, including abilities to create and modify GameObjects and scenes, manage prefabs, materials and scripts, generate 3D models and sprites, run tests, and automate workflows.
Is Coplay MCP open source?
Yes, Coplay maintains the most popular open-source Unity MCP server (unity-mcp) under the MIT license. The project is freely available and not affiliated with Unity Technologies.
How do I test if Coplay MCP works?
Prompt your MCP client (e.g., Cursor or ChatGPT) with: List all of the open unity editors using Coplay MCP. If this yields the actual list of open editors, your setup is working correctly.
What is Orchestrator Mode?
Orchestrator Mode enables developers to execute multi-step tasks in sequence based on a single game design document or command. It allows agents to perform long-running or asynchronous workflows directly within Unity, automating complex development tasks.