LangSmith is a platform for building production-grade LLM applications. Monitor and evaluate your application, so you can ship quickly and with confidence.
LangSmith is framework agnostic — you can use it with or without LangChain’s open source frameworks langchain and langgraph.
Light mode overview

Start tracing

Gain visibility into each step your application takes when handling a request to debug faster.

Evaluate your application

Measure quality of your applications over time to build more reliable AI applications.

Test your prompts

Iterate on prompts, with automatic version control and collaboration features.

Set up your workspace

Set up your workspace, configure admin settings, and invite your team to collaborate.