head to head · open source
lean-ctx vs AiSOC
lean-ctx has 3,890 GitHub stars, 353 forks, 9 open issues and last shipped yesterday. AiSOC has 2,421 stars, 271 forks, 26 open issues and last shipped yesterday. lean-ctx leads on adoption by 61% (3,890 vs 2,421 stars). lean-ctx is written in Rust under Apache-2.0; AiSOC is written in Python under MIT. lean-ctx has attracted 9% as many forks as stars, AiSOC 11%. lean-ctx 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
| lean-ctx | AiSOC | |
|---|---|---|
| GitHub stars | ★ 3.9K | ★ 2.4K |
| License | Apache-2.0 | MIT |
| Written in | Rust | Python |
| Last push | 2026-10-19 | 2026-10-19 |
| Forks | ⑂ 353 | ⑂ 271 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick lean-ctx if
- You weight community size — 3.9K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick AiSOC if
- You want the AiSOC feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and AiSOC fits your workflow better
About lean-ctx
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read the full lean-ctx overview →
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 →
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Frequently asked questions
Is lean-ctx or AiSOC more popular?
lean-ctx has 3,890 GitHub stars and AiSOC has 2,421. lean-ctx has the larger community by that measure.
Are lean-ctx and AiSOC free?
Both are open source. lean-ctx is licensed under Apache-2.0 and AiSOC under MIT. Neither carries a licence fee.
What is the difference between lean-ctx and AiSOC?
lean-ctx is written in Rust and AiSOC 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, lean-ctx or AiSOC?
Choose lean-ctx if you want the larger community (3,890 stars) or its Apache-2.0 licence terms. Choose AiSOC if its feature set, stack or MIT licence fits better. Both are self-hostable.