langfuse/langfuse
# 🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
$ git clone https://github.com/langfuse/langfuse.git
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What is langfuse/langfuse?
Langfuse is an open-source platform for monitoring and evaluating LLM applications, providing observability, metrics tracking, prompt management, and testing capabilities. Developers use it to debug LLM behavior, run evaluations across datasets, manage prompts across environments, and integrate monitoring into applications built with LangChain, OpenAI SDK, LiteLLM, and other frameworks.
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717 open issues · last updated Jul 21, 2026