head to head · open source
langchain vs VulnClaw
langchain has 148,892 GitHub stars, 25,031 forks, 492 open issues and last shipped yesterday. VulnClaw has 3,853 stars, 536 forks, 13 open issues and last shipped 4 days ago. langchain leads on adoption by 3,764% (148,892 vs 3,853 stars). langchain is written in Python under MIT; VulnClaw is written in Python under MIT. langchain has attracted 17% as many forks as stars, VulnClaw 14%. langchain was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai), 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
| langchain | VulnClaw | |
|---|---|---|
| GitHub stars | ★ 149K | ★ 3.9K |
| License | MIT | MIT |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 25K | ⑂ 536 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 149K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick VulnClaw if
- You want the VulnClaw feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and VulnClaw fits your workflow better
About langchain
The agent engineering platform. LangChain is a framework for building agents and LLM powered applications. It helps you chain together interoperable components and third party integrations to simplify AI application development — all while future proofing decisions as the underlying technology evolves. [!TIP] Just getting started? Check out Deep Agents — a higher level package built on LangChain for agents that have built in capabilities for common usage patterns such as planning, subagents, file system usage, and more. Quickstart If you're looking for more advanced customization or agent orchestration, check…
read the full langchain overview →
About VulnClaw
VulnClaw 🦞 AI 驱动的渗透测试 CLI 工具 — 说人话，打漏洞。 🌐 English version : README EN.md 本项目是可独立运行的 AI 渗透测试 Agent。 项目官网： 基于 LLM Agent + MCP 工具链 + 可选 Skill 参考资料， 配合 OpenAI / Anthropic / MiniMax / DeepSeek 等兼容模型， 自然语言输入 → 自动完成「信息收集 → 漏洞发现 → 漏洞利用 → 报告生成」全流程。 快速开始 · 架构 · 内置 Skill 它能做什么 输入自然语言，AI 自动执行渗透测试全流程： 适用于已授权的渗透测试、CTF 竞赛、安全教学、红队演练等场景。 特性 模型主导求解引擎（默认） — 类似 Claude Code/Codex 的自主循环，模型自己决定下一步、何时调用工具、何时完成/询问/判定无路可走 AgentState 证据记忆 — 工具结果统一写入 AgentState.evidence ，raw 原文完整保留；active context 默认只注入高信号预览， evidence search / evidence view 用于按需回查原始证据 轻量纠偏层 — 工具调用前后记录重复调用、失败降级、耗时和新发现等信号；重复读取同一 evidence 范围会被抑制，连续证据空转会触发 stall…
read the full VulnClaw overview →
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Frequently asked questions
Is langchain or VulnClaw more popular?
langchain has 148,892 GitHub stars and VulnClaw has 3,853. langchain has the larger community by that measure.
Are langchain and VulnClaw free?
Both are open source. langchain is licensed under MIT and VulnClaw under MIT. Neither carries a licence fee.
What is the difference between langchain and VulnClaw?
langchain is written in Python and VulnClaw 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, langchain or VulnClaw?
Choose langchain if you want the larger community (148,892 stars) or its MIT licence terms. Choose VulnClaw if its feature set, stack or MIT licence fits better. Both are self-hostable.