head to head · open source
AiSOC vs arcjet-js
AiSOC has 6,634 GitHub stars, 678 forks, 26 open issues and last shipped yesterday. arcjet-js has 698 stars, 35 forks, 11 open issues and last shipped 5 days ago. AiSOC leads on adoption by 850% (6,634 vs 698 stars). AiSOC is written in Python under MIT; arcjet-js is written in TypeScript under Apache-2.0. AiSOC has attracted 10% as many forks as stars, arcjet-js 5%. AiSOC was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-security, mcp), 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
| AiSOC | arcjet-js | |
|---|---|---|
| GitHub stars | ★ 6.6K | ★ 698 |
| License | MIT | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-10-29 |
| Forks | ⑂ 678 | ⑂ 35 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick AiSOC if
- You weight community size — 6.6K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick arcjet-js if
- You want the arcjet-js feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and arcjet-js fits your workflow better
About AiSOC
AiSOC An open source, self hostable AI SOC. The agent's prompts, tool calls, and rationale are logged step by step and replayable. MIT licensed. The community maintained demo at tryaisoc.com runs on Fly.io and can go offline; see docs/operations/live demo runbook.md and use Codespaces as the always on fallback. 90 second walkthrough — agent investigates the seeded LockBit 3.0 case end to end. The rendered .mp4 + hero.gif land with the v8.0 launch; the brief is in docs/demo/SCREENCAST SHOTLIST.md . Try AiSOC in 60 seconds One command — no clone, no Docker, no keys ( npx aisoc lands on npm with the v8.0 launch…
read the full AiSOC overview →
About arcjet-js
Arcjet JS SDK [Arcjet][arcjet] is the runtime security platform that ships in your AI code. Detect prompt injection, authorize agent tool calls, redact sensitive data, and block bots and abuse. Real time security building blocks you call inside your app, before an action happens. This is the monorepo containing various [Arcjet][arcjet] open source packages for JS. Why Arcjet? Your app's AI features and agents take real actions, calling tools, reading data, hitting APIs. Arcjet runs inside that code and lets you enforce security on each action in real time, then audit what happened Which package do I need? Arcjet…
read the full arcjet-js overview →
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Frequently asked questions
Is AiSOC or arcjet-js more popular?
AiSOC has 6,634 GitHub stars and arcjet-js has 698. AiSOC has the larger community by that measure.
Are AiSOC and arcjet-js free?
Both are open source. AiSOC is licensed under MIT and arcjet-js under Apache-2.0. Neither carries a licence fee.
What is the difference between AiSOC and arcjet-js?
AiSOC is written in Python and arcjet-js in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, AiSOC or arcjet-js?
Choose AiSOC if you want the larger community (6,634 stars) or its MIT licence terms. Choose arcjet-js if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.