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.

microsoft/ai-for-beginners: MIT permissive

Source: JustClaw-It's licence policy for this repo (checked against the repo's LICENSE file). Open on GitHub

Commercial use OK?	Yes. Commercial and proprietary use is allowed.
Attribution	Keep the copyright and permission notice in copies or substantial portions.
Copyleft	No copyleft. You don't have to open your own code.
Copyright holder	Microsoft Corporation
In JustClaw-It?	no We index this repo but don't serve its code, because its licence class is permissive. Only permissive and weak-copyleft code is served.

Licence-cleared alternatives we serve

bvlc/caffe

Caffe: a fast open framework for deep learning.

score 6.3/10 · BSD-2-Clause permissive · 34,553 stars · 242 components · search them · alternatives
opencv/opencv

Open Source Computer Vision Library

score 6.5/10 · Apache-2.0 permissive · 91,275 stars · 3,000 components · search them
d2l-ai/d2l-zh

《动手学深度学习》：面向中文读者、能运行、可讨论。中英文版被70多个国家的500多所大学用于教学。

score 2.7/10 · Apache-2.0 permissive · 82,000 stars · 19 components · search them · alternatives
xiecong/simple-implementation-of-ml-algorithms

My simplest implementations of common ML algorithms

score 4.8/10 · MIT permissive · 20 stars · 36 components · search them
patchy631/ai-engineering-hub

In-depth tutorials on LLMs, RAGs and real-world AI agent applications.

score 6.7/10 · MIT permissive · 38,412 stars · 656 components · search them · alternatives

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 1,562,000+ licence-cleared, 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.

Get a free API key Read the docs