A self-hosted alternative to LangSmith for tracing and monitoring LLM applications. It provides detailed cost tracking, latency analysis, and prompt management for complex agent workflows.
Tech Stack
TypeScriptAI, ML & Data
Why langfuse?
• Granular cost/token tracking
• Visual trace debugging
• Prompt versioning system
Limitations
• Requires database management
• Analytics can be heavy on DB
• Rapidly changing API
3/6/2026
Last Update
2,273
Forks
568
Issues
Other
License
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