Langfuse the “the most used open-source LLM Engineering platform”.
It is an observability and tracing layer for complex agents and multi-step workflows.
It is based on OpenTelemetry (interoperable observability standard for logging). Additionally it can be self-hosted, and it API first
Some of the main value adds of the platform include:
- Visibility and explainability (
Langfuse Observability) - Cross-functional and cross-disciplinary collaboration (
Prompt Management,shareable view)