# 🥊 Test your own app before someone else does — seven free AI hitters

**URL:** <https://onehack.st/t/test-your-own-app-before-someone-else-does-seven-free-ai-hitters/326756>\
**Category:** Tutorials & Methods\
**Tags:** tools, hacking, freebies, ai\
**Created:** [October 26, 2026, 1:52am UTC](https://onehack.st/t/test-your-own-app-before-someone-else-does-seven-free-ai-hitters/326756 "2026-10-26T01:52:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![BlueHacker](https://onehack.st/user_avatar/onehack.st/bluehacker/32/174721_2.png) [@BlueHacker](https://onehack.st/u/BlueHacker)\
**Post date:** [October 26, 2026, 1:52am UTC](https://onehack.st/t/test-your-own-app-before-someone-else-does-seven-free-ai-hitters/326756/1 "2026-10-26T01:52:38Z")

</div>

**Someone will test your app. Be first.** 🥊

Seven free agents that attack code you own — on your own machine, legally, tonight.

**ROUND 1 · ⚡ [strix](https://github.com/usestrix/strix) — 71.9k★**  
Finds the hole and writes the patch. If you ship a web app this month, start here and stop reading.

**ROUND 2 · 🧠 [shannon](https://github.com/KeygraphHQ/shannon) — 49.4k★**  
Reads your source code, then attacks what it just read. Have the repo? This one sees deeper than a URL scanner.

**ROUND 3 · 🕸 [pentagi](https://github.com/vxcontrol/pentagi) — 32.4k★**  
A whole team in one job: recon, exploit, report. For when you want a full engagement rather than a scan.

**ROUND 4 · 🎓 [PentestGPT](https://github.com/GreyDGL/PentestGPT) — 16.1k★**  
The classic, and it shows its reasoning at every step. Learn the trade by watching it work.

**ROUND 5 · 🧰 [hexstrike-ai](https://github.com/0x4m4/hexstrike-ai) — 13.1k★**  
Hands Claude or Cursor 150+ security tools over MCP. Already coding with an assistant? Give it hands.

**ROUND 6 · 🔬 [CAI](https://github.com/aliasrobotics/cai) — 9.8k★**  
The research framework people script their own attack chains on. Built to be extended, not just used.

**ROUND 7 · 🎯 [vulnhuntr](https://github.com/protectai/vulnhuntr) — 2.8k★**  
Zero-shot: no example of the bug needed. Point it at a big codebase when you have no idea what to look for.

> **Where to practise**
>
> **The undercard matters as much as the fight.** [Juice Shop](https://github.com/juice-shop/juice-shop) (14.2k★) is a store built to be cracked; [PortSwigger’s labs](https://portswigger.net/web-security/all-labs) run free in the browser. Run an agent, then compare its report to the lab’s own answer key — that comparison is where you learn.

📌 Tonight: clone strix, aim it at Juice Shop, read one report. Your own code never looks the same afterwards.