Open source anthropic-claude projects

Every project in the registry tagged anthropic-claude, ranked by real GitHub adoption.

projects 3 combined stars ★ 53K refresh nightly
01 claude-skills ★ 26K

380 Claude Code skills & agent skills & plugins (30+ Agents, 70+ custom commands, 380+ skills, customizable references, scripts)for Claude Code, Codex, Gemini C

last push20 days ago languagePython licenseMIT
02 opcode ★ 22K

A powerful GUI app and Toolkit for Claude Code - Create custom agents, manage interactive Claude Code sessions, run secure background agents, and more.

last push14 hours ago languageTypeScript licenseAGPL-3.0
03 open-claude-cowork ★ 4.4K

Open Source version of Claude Cowork with 500+ SaaS app integrations

last push4 months ago languageJavaScript licenseMIT

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Frequently asked questions

How many open source anthropic-claude projects are there?

This registry tracks 3 projects tagged anthropic-claude, with 52,896 GitHub stars between them. The most-adopted is claude-skills at 26,129 stars.

Are these anthropic-claude projects free to use?

Yes — 3 of the 3 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which anthropic-claude project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these anthropic-claude projects still maintained?

2 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.