Build trustworthy AI agents
LangChain's platform for tracing, evaluation and monitoring of LLM and agent applications.
LangChain's commercial observability/eval platform: trace every chain/graph run, score outputs, manage prompts. The default when your stack is LangChain/LangGraph.
Who it's for
LangChain teams who want integrated tracing, evaluation and prompt engineering for LLM apps.
Official links
Keep exploring
Concepts in the glossary
2 in catalog
LangSmith features
1 in catalog
LangSmith implements
3 in catalog