head to head · open source
Anthropic-Cybersecurity-Skills vs tenzir
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars, 4,318 forks, 48 open issues and last shipped 2 months ago. tenzir has 770 stars, 110 forks, 0 open issues and last shipped yesterday. Anthropic-Cybersecurity-Skills leads on adoption by 4,504% (35,453 vs 770 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; tenzir is written in C++ under BSD-3-Clause. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, tenzir 14%. tenzir was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (incident-response), 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 | tenzir | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 770 |
| License | Apache-2.0 | BSD-3-Clause |
| Written in | Python | C++ |
| Last push | 2026-08-31 | 2026-11-02 |
| Forks | ⑂ 4.3K | ⑂ 110 |
| 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 tenzir if
- You want the tenzir feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches C++
- You evaluated both and tenzir 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…
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About tenzir
Data Pipelines for Security Teams Collect, transform, enrich, and route your telemetry—all in one place. What is Tenzir? Tenzir is the data pipeline engine for security teams. If you need to collect, parse, shape, normalize, aggregate, store, query, and route security telemetry data at scale, you'll love how our pipelines manage your dataflows. Tenzir makes it easy to quickly onboard and store data from numerous sources, reduce data volumes to optimize cloud and data costs, and execute detections and run analytics in stream. Get Started Check out our documentation where your find tutorials that walk your through…
read the full tenzir overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or tenzir more popular?
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars and tenzir has 770. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and tenzir free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and tenzir under BSD-3-Clause. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and tenzir?
Anthropic-Cybersecurity-Skills is written in Python and tenzir in C++. 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 tenzir?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (35,453 stars) or its Apache-2.0 licence terms. Choose tenzir if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.