langfuse
by langfuse
Langfuse is an open-source platform for monitoring, evaluating, and debugging AI applications, particularly large language models (LLMs). It helps teams track LLM calls, manage prompts, and perform evaluations.
Ready to useEstablished, openly licensed, and no red flags in its documentation.
- Stars
- 36.5k
- Licence
- MIT
- Runs on
- A small server
- Setup
- Moderate
- Language
- TypeScript
- Age
- 1257 days
What you can do with it
- Monitor LLM applications
- Manage and version control prompts
- Perform evaluations and collect feedback
Ways a business could use it
- Save time on monitoring and debugging AI applications
- Centralize prompt management and version control
Can you use it commercially?
Free to use, change and sell (MIT-style terms in the licence file). Some folders may carry other terms.
Not legal advice. Read the project's licence file before building a product on it.
Getting it running
Self-hosted using Docker or Kubernetes
Follow the official instructions in the project README.
Checked 26 Oct 2026. Summary drafted by AI from the project's README.
