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Langfuse

Featured Open Source

Open-source LLM observability, tracing, and evaluation platform

Langfuse is an open-source platform for LLM application observability. It provides traces, spans, scores, and evals for debugging and monitoring LLM pipelines, with SDKs for Python and JavaScript and integrations with LangChain, LlamaIndex, and more.

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Product Overview

Use Cases

  • LLM Tracing
  • Prompt Management
  • Cost Monitoring
  • LLM Evaluation

Ideal For

AI Application DevelopersML EngineersLLMOps Teams

Architecture Fit

Enterprise ReadySelf HostedCloud NativeAPI FirstMulti-Agent CompatibleKubernetes SupportOpen Source

Technical Details

Deployment Model
self-hosted
LLM Providers
OpenAIAnthropicGeminiMistral

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