infrastructure
Langfuse
by Langfuse
Langfuse is an open-source (MIT) LLM engineering and observability platform that provides tracing, prompt management, evaluation, and analytics for LLM applications. It is framework-agnostic and built on OpenTelemetry, deployable via self-hosted Docker/Postgres or as a cloud SaaS. Acquired by ClickHouse in January 2026, it has grown to 19,000+ GitHub stars, 2,000+ paying customers, and 26M+ SDK installs per month.
8 Overall Score
Scores
Capability 8
Ease of Use 7
Documentation 9
Reliability 8
Value 9
Momentum 9
Details
- Status
- active
- Pricing
- freemium
- Launch Date
- Website
- https://langfuse.com/
- Last Updated
Key Features
- End-to-end LLM tracing and observability (OpenTelemetry-native)
- Prompt management and versioning across environments
- LLM output evaluation and scoring (automated + human)
- Self-hostable via Docker/Postgres or managed cloud SaaS
- Framework-agnostic integrations (LangChain, OpenAI, Anthropic, etc.)