head to head · open source
shannon vs agentic_security
shannon has 50,964 GitHub stars, 5,926 forks, 18 open issues and last shipped 7 days ago. agentic_security has 2,040 stars, 300 forks, 72 open issues and last shipped 2 days ago. shannon leads on adoption by 2,398% (50,964 vs 2,040 stars). shannon is written in TypeScript under AGPL-3.0; agentic_security is written in Python under Apache-2.0. shannon has attracted 12% as many forks as stars, agentic_security 15%. agentic_security was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| shannon | agentic_security | |
|---|---|---|
| GitHub stars | ★ 51K | ★ 2.0K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-10-27 | 2026-11-01 |
| Forks | ⑂ 5.9K | ⑂ 300 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick shannon if
- You weight community size — 51K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick agentic_security if
- You want the agentic_security 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 agentic_security fits your workflow better
About shannon
[!NOTE] Shannon 3.0 is live: deeper security code analysis, more thoroughly vetted findings, a rebuilt CLI, native CI/CD, professional PDF reports, and SARIF. Shannon is an autonomous, AI pentester for web applications and APIs. It analyzes your source code, identifies attack paths, and executes real exploits to prove vulnerabilities before they reach production. No exploit, no report. This repository is Shannon Open Source: the full agent, run locally from your command line. Launch Shannon The interactive launcher will guide you through setup and your first pentest. [!TIP] AI agents and LLMs: start with…
read the full shannon overview →
About agentic_security
Agentic Security An open source vulnerability scanner for Agent Workflows and Large Language Models (LLMs) Protecting AI systems from jailbreaks, fuzzing, and multimodal attacks. Explore the docs » · Report a Bug » Features Agentic Security equips you with powerful tools to safeguard LLMs against emerging threats. Here's what you can do: Multimodal Attacks 🖼️🎙️ Probe vulnerabilities across text, images, and audio inputs to ensure your LLM is robust against diverse threats. Multi Step Jailbreaks 🌀 Simulate sophisticated, iterative attack sequences to uncover weaknesses in LLM safety mechanisms. Comprehensive…
read the full agentic_security overview →
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Frequently asked questions
Is shannon or agentic_security more popular?
shannon has 50,964 GitHub stars and agentic_security has 2,040. shannon has the larger community by that measure.
Are shannon and agentic_security free?
Both are open source. shannon is licensed under AGPL-3.0 and agentic_security under Apache-2.0. Neither carries a licence fee.
What is the difference between shannon and agentic_security?
shannon is written in TypeScript and agentic_security 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, shannon or agentic_security?
Choose shannon if you want the larger community (50,964 stars) or its AGPL-3.0 licence terms. Choose agentic_security if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.