head to head · open source
strix vs SkillSpector
strix has 73,259 GitHub stars, 8,252 forks, 383 open issues and last shipped 4 days ago. SkillSpector has 23,886 stars, 2,061 forks, 136 open issues and last shipped yesterday. strix leads on adoption by 207% (73,259 vs 23,886 stars). strix is written in Python under Apache-2.0; SkillSpector is written in Python under Apache-2.0. strix has attracted 11% as many forks as stars, SkillSpector 9%. SkillSpector was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-security), 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
| strix | SkillSpector | |
|---|---|---|
| GitHub stars | ★ 73K | ★ 24K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-10-30 | 2026-11-02 |
| Forks | ⑂ 8.3K | ⑂ 2.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick strix if
- You weight community size — 73K 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 SkillSpector if
- You want the SkillSpector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and SkillSpector fits your workflow better
About strix
Strix The open source AI pentesting tool. Autonomous AI hackers that find and fix your app’s vulnerabilities. [!TIP] New! Strix integrates seamlessly with GitHub Actions and CI/CD pipelines. Automatically scan for vulnerabilities on every pull request and block insecure code before it reaches production Get started with no setup required. Strix Overview Strix are autonomous AI penetration testing agents that act just like real hackers they run your code dynamically, find vulnerabilities, and validate them through actual proofs of concept. Built for developers and security teams who need fast, accurate security…
read the full strix overview →
About SkillSpector
SkillSpector Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks before installing agent skills. Overview AI agent skills (used by Claude Code, Codex CLI, Gemini CLI, etc.) execute with implicit trust and minimal vetting. In the 31,132 skill analyzed subset of the research dataset, 26.1% of skills contain vulnerabilities and 5.2% show likely malicious intent . SkillSpector helps you answer: "Is this skill safe to install?" SkillSpector is part of the NVIDIA Verified Skills pipeline, which scans, evaluates, and signs agent skills before publication. Skills that…
read the full SkillSpector overview →
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Frequently asked questions
Is strix or SkillSpector more popular?
strix has 73,259 GitHub stars and SkillSpector has 23,886. strix has the larger community by that measure.
Are strix and SkillSpector free?
Both are open source. strix is licensed under Apache-2.0 and SkillSpector under Apache-2.0. Neither carries a licence fee.
What is the difference between strix and SkillSpector?
strix is written in Python and SkillSpector in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, strix or SkillSpector?
Choose strix if you want the larger community (73,259 stars) or its Apache-2.0 licence terms. Choose SkillSpector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.