head to head · open source
Anthropic-Cybersecurity-Skills vs Pentest-Swarm-AI
Anthropic-Cybersecurity-Skills has 33,792 GitHub stars, 4,097 forks, 48 open issues and last shipped 1 months ago. Pentest-Swarm-AI has 2,733 stars, 499 forks, 18 open issues and last shipped 4 days ago. Anthropic-Cybersecurity-Skills leads on adoption by 1,136% (33,792 vs 2,733 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; Pentest-Swarm-AI is written in Go under AGPL-3.0. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, Pentest-Swarm-AI 18%. Pentest-Swarm-AI was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agents, cybersecurity), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Anthropic-Cybersecurity-Skills | Pentest-Swarm-AI | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 2.7K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Python | Go |
| Last push | 2026-08-31 | 2026-10-01 |
| Forks | ⑂ 4.1K | ⑂ 499 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 34K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Pentest-Swarm-AI if
- You want the Pentest-Swarm-AI feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and Pentest-Swarm-AI fits your workflow better
About Anthropic-Cybersecurity-Skills
Anthropic Cybersecurity Skills is an Apache 2.0 Python library of 817 structured cybersecurity skills that gives AI agents the working knowledge of a senior security analyst, aimed at security teams, DevSecOps engineers, and red or blue teams that already run agents such as Claude Code, GitHub Copilot, Codex CLI, Cursor, or Gemini CLI.
read the full Anthropic-Cybersecurity-Skills overview →
About Pentest-Swarm-AI
Pentest Swarm AI is an open source, self hosted autonomous penetration testing framework in Go that puts a swarm of AI agents against APIs and web applications for authorized security work.
read the full Pentest-Swarm-AI overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or Pentest-Swarm-AI more popular?
Anthropic-Cybersecurity-Skills has 33,792 GitHub stars and Pentest-Swarm-AI has 2,733. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and Pentest-Swarm-AI free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and Pentest-Swarm-AI under AGPL-3.0. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and Pentest-Swarm-AI?
Anthropic-Cybersecurity-Skills is written in Python and Pentest-Swarm-AI in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Anthropic-Cybersecurity-Skills or Pentest-Swarm-AI?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (33,792 stars) or its Apache-2.0 licence terms. Choose Pentest-Swarm-AI if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.