head to head · open source
Anthropic-Cybersecurity-Skills vs pentagi
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars, 4,318 forks, 48 open issues and last shipped 2 months ago. pentagi has 33,056 stars, 5,165 forks, 71 open issues and last shipped 12 days ago. Anthropic-Cybersecurity-Skills leads on adoption by 7% (35,453 vs 33,056 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; pentagi is written in Go under MIT. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, pentagi 16%. pentagi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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 | pentagi | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 33K |
| License | Apache-2.0 | MIT |
| Written in | Python | Go |
| Last push | 2026-08-31 | 2026-10-22 |
| Forks | ⑂ 4.3K | ⑂ 5.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 35K 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 pentagi if
- You want the pentagi feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and pentagi fits your workflow better
About Anthropic-Cybersecurity-Skills
Anthropic Cybersecurity Skills The largest open source cybersecurity skills library for AI agents 818 production grade cybersecurity skills · 34 security domains · 6 framework mappings · 26+ AI platforms Get Started · What's Inside · Frameworks · Platforms · Contributing ⚠️ Community Project — This is an independent, community created project. Not affiliated with Anthropic PBC. 🔐 Authorized & lawful use only. This library includes offensive and dual use techniques (e.g. red team C2, phishing simulation, exploitation) intended for authorized penetration testing, security research, defense, and education . Only…
read the full Anthropic-Cybersecurity-Skills overview →
About pentagi
PentAGI P enetration testing A rtificial G eneral I ntelligence Join the Community! Connect with security researchers, AI enthusiasts, and fellow ethical hackers. Get support, share insights, and stay updated with the latest PentAGI developments. ⠀ Table of Contents Overview Features Architecture Agent Supervision Quick Start Agent Docker Access Running Several Instances How to Use PentAGI After Login API Access LLM Provider Configuration Ollama OpenAI Anthropic Google AI (Gemini) AWS Bedrock DeepSeek GLM Kimi Qwen MiniMax Advanced Setup Langfuse Integration Monitoring and Observability Knowledge Graph…
read the full pentagi overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or pentagi more popular?
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars and pentagi has 33,056. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and pentagi free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and pentagi under MIT. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and pentagi?
Anthropic-Cybersecurity-Skills is written in Python and pentagi 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 pentagi?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (35,453 stars) or its Apache-2.0 licence terms. Choose pentagi if its feature set, stack or MIT licence fits better. Both are self-hostable.