sandbase-harness
★ 635
vs
unity-mcp
★ 15.3k
sandbase-harness vs unity-mcp
sandbase-harness: SandBase Harness is a local-first runtime designed for AI agents, providing essential infrastructure like persistent sessions, sandboxed execution environments, and comprehensive audit trails. It enables secure and observable agent operations directly on your machine or within your own infrastructure, supporting various models and tool integrations.; unity-mcp: MCP for Unity integrates AI assistants like Claude and VS Code Copilot with the Unity Editor using the Model Context Protocol. This allows developers to use Large Language Models to manage assets, control scenes, edit scripts, and automate various tasks within Unity, streamlining game development workflows.
01
TL;DR
sandbase-harnessDev Tooling · ★ 635
Running auditable coding agents with controlled and sandboxed code execution.
unity-mcpDev Tooling · ★ 15.3k
When to choose:
- You develop games in Unity and want AI assistants (Claude, Cursor) to manage assets, inspect hierarchy, edit C# scripts, and run Editor commands via MCP.
- You want to automate scene setup, prefab creation, and repetitive Unity Editor tasks using natural language.
When to skip:
- You use Unreal Engine or Godot; unity-mcp connects strictly to the Unity Editor.
- You only write gameplay C# logic outside of Unity and do not need Editor-level RPC integration.
02
Side-by-Side Comparison
Field
sandbase-harnessunity-mcpCategory
Dev Tooling
Dev Tooling
Stars
★ 635
★ 15.3k
License
Apache-2.0
MIT
Install Command
git clone --branch v0.3.8 --depth 1 https://github.com/sandbaseai/sandbase-harness.git && cd sandbase-harness && npm ci && npm run build && mkdir ../my-agents && cd ../my-agents && node ../sandbase-harness/dist/index.js init && node ../sandbase-harness/dist/index.js start
Unity Package Manager → Add from git URL: https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main
Updated
5d ago
4d ago
Open Source
Yes
Yes
Tags
AI Agent Runtime, Sandboxed Execution, Session Management
Unity, LLM, AI Assistant
03
Features
sandbase-harness01Local, Docker, Kubernetes, and self-hosted worker sandboxes for safe code execution.
02Persistent sessions, resumable event streams, audit logs, and replay capabilities for inspecting long-running agents.
03MCP toolsets, credential vaults, and permission policies for controlling tool access.
04Compatibility with OpenAI, Anthropic, MiniMax, DeepSeek V4, and other OpenAI-compatible model providers.
05Local-first storage with SQLite for metadata and file storage, without a required hosted control plane.
unity-mcp01Natural Language Control over Unity
02Comprehensive Unity Toolset (assets, scenes, scripts, etc.)
03Automation of Repetitive Workflows
04Extensible with Various MCP Clients
05Seamless AI Assistant Integration
04
Use Cases
sandbase-harness↳Running auditable coding agents with controlled and sandboxed code execution.
↳Using DeepSeek Harness as an interactive front end for agents, with rich session management.
↳Managing and securing third-party plugins with sandbox and filesystem protection.
↳Building an auditable research agent, combining evidence ledgers with sandboxed execution, credentials, audit, and replay.
↳Self-hosting an AI agent runtime on your own infrastructure for full control and data privacy.
unity-mcp↳Rapidly creating and prototyping Unity applications using natural language.
↳AI-driven management of Unity assets, scenes, and scripts.
↳Automating complex or repetitive Unity development workflows.
05
Best For
sandbase-harnessTrending
unity-mcpMost PopularEssentialTrending
FAQ
FAQ
What is the difference between sandbase-harness and unity-mcp?
Both sandbase-harness and unity-mcp are in the Dev Tooling category. sandbase-harness has 635 stars, while unity-mcp has 15.3k stars.
Which is better, sandbase-harness or unity-mcp?
The best choice depends on your use case. Choose sandbase-harness if Running auditable coding agents with controlled and sandboxed code execution., and unity-mcp if Rapidly creating and prototyping Unity applications using natural language..
Is sandbase-harness free or open source?
Yes, sandbase-harness is open source on GitHub (Apache-2.0).
Is unity-mcp free or open source?
Yes, unity-mcp is open source on GitHub (MIT).
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