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UniClaude

Free

Claude Code, natively inside Unity Editor

#unity#claude#ai-assistant#game-development#mcp#code-assistant#unity-editor#anthropic
Type
Saas
Company
TheArcForge

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

Dockable Editor Chat Window with streaming responses and dark/light themes
Full project awareness - indexes scenes, prefabs, scripts, shaders, and ScriptableObjects
60+ Unity MCP tools for inspecting and modifying scenes, components, materials, and animations
Full Undo integration for all tool operations
Model selection - supports Claude 3.5 Sonnet, Opus, and Haiku with adjustable reasoning effort
Built-in Diff Viewer for reviewing script changes
File and screenshot attachments support
Permission system requiring explicit approval for tool calls
Survives Unity domain reloads with automatic reconnection
Extensible slash command system

Pros & Cons

Pros
  • 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
Cons
  • Project is sunset and no longer maintained due to Anthropic's updated Terms of Service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

Best For

Unity game developers: Integrate Claude AI directly into the Unity Editor for context-aware coding assistance without leaving the development environment.Game development teams: Use 60+ MCP tools to let AI inspect and modify scenes, components, and materials with full undo support and safety controls.Indie game developers: Get AI-powered coding assistance with full project awareness, understanding your scenes, prefabs, scripts, and shaders.

Alternatives to UniClaude

FAQ

Is UniClaude still supported?
No. As of v1.0.0 'Swan Song', the project is sunset. Anthropic's updated Terms of Service prohibit third-party tools from authenticating via Claude subscription OAuth, which was UniClaude's core pricing model. The final release includes a migration guide for extracting its MCP tools into a standalone package.