head to head · open source
Anthropic-Cybersecurity-Skills vs opentrap
Anthropic-Cybersecurity-Skills has 35,023 GitHub stars, 4,267 forks, 48 open issues and last shipped 2 months ago. opentrap has 543 stars, 7 forks, 0 open issues and last shipped 2 days ago. Anthropic-Cybersecurity-Skills leads on adoption by 6,350% (35,023 vs 543 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; opentrap is written in Java under AGPL-3.0. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, opentrap 1%. opentrap was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (infosec), 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.
← all 20902 open source comparisons
Side by side
| Anthropic-Cybersecurity-Skills | opentrap | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 543 |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Python | Java |
| Last push | 2026-08-31 | 2026-10-25 |
| Forks | ⑂ 4.3K | ⑂ 7 |
| 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 opentrap if
- You want the opentrap feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Java
- You evaluated both and opentrap 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 opentrap
Open Traffic Replay and Analysis Proxy A free and open source alternative to Burp Suite, built on the trusted OWASP ZAP engine. Share: X · LinkedIn · Reddit · Hacker News One command to download and run the tool: The Dashboard after a scan: the crawl's locations and requests, the audit's findings by severity, and the most serious vulnerabilities as they were confirmed. Proudly free and open source OpenTRAP is free and open source software, released under the GNU AGPL v3.0 with no licence gate on anything. We stand with the organisations that make free and open source software possible if…
read the full opentrap overview →
More in Security & Privacy
Related comparisons
More Threat Detection & Response projects
Compare either of these against the rest of the Threat Detection & Response field.
Frequently asked questions
Is Anthropic-Cybersecurity-Skills or opentrap more popular?
Anthropic-Cybersecurity-Skills has 35,023 GitHub stars and opentrap has 543. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and opentrap free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and opentrap under AGPL-3.0. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and opentrap?
Anthropic-Cybersecurity-Skills is written in Python and opentrap in Java. 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 opentrap?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (35,023 stars) or its Apache-2.0 licence terms. Choose opentrap if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.