langfuse
https://github.com/langfuse/langfuse
TypeScript
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with LlamaIndex, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23
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- Issues
- fix(analytics): prevent dropping data points for multi-unit intervals
- fix(datasets): encode dataset item ID in UI navigation URL paths (#17259)
- chore(web): remove expired searchBar feature-preview plumbing
- ci: pass security-review skill to Claude Code scan
- feat(web): group scores by evaluator prefix in chips and Scores tab
- Cross-runtime reliability receipt — optional SABLE verification
- fix(web): drop Cursor computer-use stale snapshot refs from Sentry
- fix(experiments): avoid categorical comparison collisions
- feat(worker): add optional trace batch locality strategy
- feat(shared): add opt-in verifiable execution receipt export
- Docs
- TypeScript not yet supported