npm package

langsmith

Updated 2026-07-16 View source ↗

#10 of 203 by Downloads / week among npm packages

4.4M Downloads / week

Client library to connect to the LangSmith Observability and Evaluation Platform.

About

This package contains the TypeScript client for interacting with the LangSmith platform.

LangSmith helps you and your team develop and evaluate language models and intelligent agents. It is compatible with any LLM Application and provides seamless integration with LangChain, a widely recognized open-source framework that simplifies the process for developers to create powerful language model applications.

Note: You can enjoy the benefits of LangSmith without using the LangChain open-source packages! To get started with your own proprietary framework, set up your account and then skip to Logging Traces Outside LangChain.

Cookbook: For tutorials on how to get more value out of LangSmith,…

Excerpted from www.npmjs.com/package/langsmith

Latest metrics

Downloads / week 4.4M 2026-07-16