The open-source, local-first alternative to LangSmith. No cloud. No setup.
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Updated
May 9, 2026 - Python
The open-source, local-first alternative to LangSmith. No cloud. No setup.
Drop-in observability for LLM apps — quality scoring, hallucination detection, cost tracking and agent debugging
This repo contains detailed notes on LangSmith concepts including traces, runs, observability, and integrations with LangChain, RAG, and LangGraph.
Self-hosted observability and debugging platform for AI agents with traces, execution DAGs, cost analytics, latency stats, and live events.
See every prompt, every trace, every dollar.
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