GitHub licence checker
Paste a GitHub repo. You'll see its licence, whether you can use it commercially, what attribution you owe, and any copyleft warning, plus whether JustClaw-It already serves licence-cleared components from it.
datawhalechina/hello-agents: CC-BY-NC-4.0 non-commercial
Source: JustClaw-It's licence policy for this repo (checked against the repo's LICENSE file). Open on GitHub
| Commercial use OK? | No. The licence forbids commercial use. |
| Attribution | Not applicable: the licence doesn't allow the use in the first place. |
| Copyleft | Not an open-source licence. |
| Copyright holder | --then that use is not regulated by the license. Our |
| In JustClaw-It? | no We index this repo but don't serve its code, because its licence class is non-commercial. Only permissive and weak-copyleft code is served. |
Licence-cleared alternatives we serve
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🚀 EvoAgentX: Building a Self-Evolving Ecosystem of AI Agentsscore 6.4/10 · MIT permissive · 3,400 stars · 238 components · search them
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Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1
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A step-by-step guide to build your own AI agent.score 6.1/10 · MIT permissive · 1,906 stars · 577 components · search them
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FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, letting you easily develo
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Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
This is information, not legal advice. Licences can differ per file or per release; read the repo's LICENSE and NOTICE files before shipping.
Questions
Can I use MIT-licensed code in a commercial product?
Yes. MIT allows commercial and proprietary use. You must keep the copyright and permission notice with the code.
What does copyleft mean for my code?
Strong copyleft (GPL) means distributing a product that includes the code puts the whole product under the GPL. Network copyleft (AGPL) extends that to software you only run as a service. Weak copyleft (MPL, LGPL) limits the obligation to the licensed files or library.
What if a repo has no licence?
Then all rights are reserved by the author. You can read the code, but you may not copy, modify or ship it without permission.
Stop checking licences by hand. JustClaw-It is an MCP server with 1,449,000+ licence-cleared, quality-scored code components. Search is free; every result carries its licence and attribution.
Remote MCP endpoint: https://justclaw.it.com/mcp (API key auth). Works with Claude Code, Cursor,
Codex, Windsurf and other MCP clients. A one-line CLI installer (@justclaw-it/cli) is coming.