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8.3kRust Tool langfuse
Langfuse — LLM Engineering
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
Open Tool github.com
28.2k Stars
2.9k Forks
TypeScript Language
NOASSERTION License
May 30, 2026 Last push
Langfuse is an open-source LLM engineering platform that provides observability, metrics, evaluation, prompt management, and a playground for AI applications. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. YC W23 graduate.