Langfuse
by Langfuse · freemium · Last verified 2026-03-17
Open-source LLM engineering platform for observability, metrics, evaluations, and prompt management. Provides detailed tracing of LLM application runs with cost tracking and quality monitoring.
https://langfuse.com ↗B
B—Above Average
Adoption: B+Quality: AFreshness: A+Citations: BEngagement: F
Specifications
- License
- MIT
- Pricing
- freemium
- Capabilities
- tracing, cost-tracking, prompt-management, evaluation, analytics-dashboard
- Integrations
- langchain, llamaindex, openai, anthropic, litellm
- Use Cases
- llm-debugging, cost-optimization, quality-monitoring, prompt-versioning
- API Available
- Yes
- SDK Languages
- python, typescript
- Deployment
- cloud, self-hosted, docker
- Rate Limits
- 50K observations/month on free tier
- Data Privacy
- SOC 2 Type II, GDPR compliant; self-hosted option available
- Tags
- observability, tracing, analytics, llm-monitoring, open-source
- Added
- 2026-03-17
- Completeness
- 100%
Index Score
60.3Adoption
70
Quality
84
Freshness
90
Citations
62
Engagement
0