head to head · open source
codex-security vs Adrian
codex-security has 11,287 GitHub stars, 903 forks, 220 open issues and last shipped yesterday. Adrian has 589 stars, 96 forks, 6 open issues and last shipped 13 days ago. codex-security leads on adoption by 1,816% (11,287 vs 589 stars). codex-security is written in TypeScript under Apache-2.0; Adrian is written in Python under Apache-2.0. codex-security has attracted 8% as many forks as stars, Adrian 16%. codex-security 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
| codex-security | Adrian | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 589 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-02 | 2026-10-21 |
| Forks | ⑂ 903 | ⑂ 96 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick codex-security if
- You weight community size — 11K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Adrian if
- You want the Adrian 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 Adrian fits your workflow better
About codex-security
Codex Security @openai/codex security is a CLI and TypeScript SDK for defining security policy and finding, validating, and fixing security vulnerabilities in your code. 👉👉 See the Codex Security documentation for full documentation. Some cybersecurity requests and protected findings require approval through Trusted Access for Cyber. To join the program, visit chatgpt.com/cyber. Quick start Requires Node.js 22.13.0 or later and Python 3.10 or later. For CI, set OPENAI API KEY instead of signing in. Generate SECURITY.md Draft repository wide or component scoped SECURITY.md guidance for future scans: The command…
read the full codex-security overview →
About Adrian
Agent attacks slip past static analysis and network monitoring. Adrian catches them at runtime, by watching what the agent actually does (its actions and its reasoning) and stepping in before it acts. Open source, free forever. +35% detection accuracy · 4x more nuanced attacks caught vs behaviour only monitoring ( OpenAI & DeepMind research ) ⭐ If you think agents need a runtime security layer, star the repo. It is how new people find Adrian, and how we know to keep building it in the open. Adrian is an open source, AARM aligned runtime security monitoring and control engine for AI agents. It analyses both agent…
read the full Adrian overview →
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Frequently asked questions
Is codex-security or Adrian more popular?
codex-security has 11,287 GitHub stars and Adrian has 589. codex-security has the larger community by that measure.
Are codex-security and Adrian free?
Both are open source. codex-security is licensed under Apache-2.0 and Adrian under Apache-2.0. Neither carries a licence fee.
What is the difference between codex-security and Adrian?
codex-security is written in TypeScript and Adrian 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, codex-security or Adrian?
Choose codex-security if you want the larger community (11,287 stars) or its Apache-2.0 licence terms. Choose Adrian if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.