head to head · open source
langchain vs KiroCrew
langchain has 146,562 GitHub stars, 24,508 forks, 492 open issues and last shipped yesterday. KiroCrew has 3,991 stars, 615 forks, 1,885 open issues and last shipped yesterday. langchain leads on adoption by 3,572% (146,562 vs 3,991 stars). langchain is written in Python under MIT; KiroCrew is written in Python under Apache-2.0. langchain has attracted 17% as many forks as stars, KiroCrew 15%. KiroCrew was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (agents, ai-agents), 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 | KiroCrew | |
|---|---|---|
| GitHub stars | ★ 147K | ★ 4.0K |
| License | MIT | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 25K | ⑂ 615 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 147K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick KiroCrew if
- You want the KiroCrew 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 KiroCrew fits your workflow better
About langchain
LangChain is an open source framework for building agents and LLM powered applications, written in Python and released under the MIT license. It lives in the AI and machine learning ecosystem, specifically among AI development platforms, and it works by chaining together interoperable components and third party integrations so that AI application development becomes simpler. The project describes itself as the agent engineering platform, and its abstractions are designed to keep applications working as the underlying technology evolves.
read the full langchain overview →
About KiroCrew
Kiro Crew is an open source, Apache 2.0 licensed development workspace that runs on your own hardware, persists across sessions, and self improves, built for developers and teams who want unattended agentic development work rather than a chat session that forgets everything when it closes.
read the full KiroCrew overview →
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Frequently asked questions
Is langchain or KiroCrew more popular?
langchain has 146,562 GitHub stars and KiroCrew has 3,991. langchain has the larger community by that measure.
Are langchain and KiroCrew free?
Both are open source. langchain is licensed under MIT and KiroCrew under Apache-2.0. Neither carries a licence fee.
What is the difference between langchain and KiroCrew?
langchain is written in Python and KiroCrew 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 KiroCrew?
Choose langchain if you want the larger community (146,562 stars) or its MIT licence terms. Choose KiroCrew if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.