UniClaude
FreeClaude Code, natively inside Unity Editor
About UniClaude
UniClaude is an open-source Unity Editor integration that brings Claude AI natively into the development environment via a dockable chat window. It provides full project awareness by indexing scenes, prefabs, scripts, shaders, and ScriptableObjects, and offers 75+ MCP tools for inspecting and modifying almost every aspect of a Unity project. Features include a Unity Agent persona that enforces professional Unity development practices, 10 downloadable architecture skills covering the full development lifecycle, model selection (Sonnet/Opus/Haiku), file and screenshot attachments, a permission system for approval of tool calls, a diff viewer for script changes, and Ninja Install Mode to keep the tool hidden from version control. All functionality is powered by the user's Claude subscription. Note: As of v1.0.0 'Swan Song', the project is sunset because Anthropic's updated Terms of Service prohibit third-party tools from authenticating via Claude subscription OAuth.
Key Features
Pros & Cons
- Deep integration with the Unity Editor – no alt-tabbing required
- Comprehensive MCP toolset (75+ tools) covering all major Unity subsystems
- Full undo integration ensures safe experimentation
- Permission system provides explicit control before any tool call executes
- Open source and free to use (requires a paid Claude subscription)
- Project awareness indexes the entire Unity project for context-rich assistance
- Project is sunset and no longer maintained due to Anthropic's updated Terms of Service
- Requires a paid Claude subscription; does not work with other models or APIs
- Exclusively for Unity developers – no broader use outside game development
- Niche tool that depends on both Unity and Anthropic's ecosystem
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