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Observability · Langfuse

Langfuse

Open-source LLM observability. Self-hostable, OpenTelemetry-native.

FREEMIUMAPIWebVetted

Tracing, evals, prompt management, and dataset tooling for LLM apps — self-host on your own infra or use Langfuse Cloud. The open-source default when you want full ownership of your observability stack.

Model support

Model-agnostic

Where it runs

  • API
  • Web

Tags

  • #open-source
  • #tracing
  • #evals
  • #self-hosted
Open LangfuseGitHubDocs

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