head to head · open source
Uptime Kuma vs langsmith-sdk
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. langsmith-sdk has 1,059 stars, 296 forks, 216 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 8,540% (91,498 vs 1,059 stars). Uptime Kuma is written in JavaScript under MIT; langsmith-sdk is written in Python under MIT. Uptime Kuma has attracted 9% as many forks as stars, langsmith-sdk 28%. langsmith-sdk 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
| Uptime Kuma | langsmith-sdk | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 1.1K |
| License | MIT | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 8.4K | ⑂ 296 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 91K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick langsmith-sdk if
- You want the langsmith-sdk feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and langsmith-sdk fits your workflow better
About Uptime Kuma
Uptime Kuma is a free, MIT licensed, self hosted monitoring tool with a reactive web dashboard, built for operators and teams that want to watch their own HTTP, TCP, and DNS endpoints and keep the resulting data on their own infrastructure.
read the full Uptime Kuma overview →
About langsmith-sdk
LangSmith SDK is the official pair of Python and JavaScript client libraries for the LangSmith platform, built and maintained by LangChain for teams that need to debug, evaluate, and monitor language models and intelligent agents.
read the full langsmith-sdk overview →
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Frequently asked questions
Is Uptime Kuma or langsmith-sdk more popular?
Uptime Kuma has 91,498 GitHub stars and langsmith-sdk has 1,059. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and langsmith-sdk free?
Both are open source. Uptime Kuma is licensed under MIT and langsmith-sdk under MIT. Neither carries a licence fee.
What is the difference between Uptime Kuma and langsmith-sdk?
Uptime Kuma is written in JavaScript and langsmith-sdk 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, Uptime Kuma or langsmith-sdk?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose langsmith-sdk if its feature set, stack or MIT licence fits better. Both are self-hostable.