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Langfuse

Open-source observability and analytics for LLM apps

Self-Hosted AI ★ 32.7k stars Medium setup MIT

Langfuse is an open-source platform for tracing, evaluating, and monitoring LLM applications. It captures detailed traces, manages prompts, and provides analytics dashboards for production AI systems.

Key features

  • LLM tracing and analytics
  • Prompt management
  • Evaluation tooling
  • Self-hostable

Strengths

  • Released under the MIT license
  • First-class Docker support for quick deployment
  • Kubernetes-ready with Helm charts available
  • Mature project with 32.7k GitHub stars

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