LangChain JS

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Bartosz Roguski
Machine Learning Engineer
Published: July 1, 2025
Glossary Category

LangChain JS is a JavaScript framework for developing applications based on large language models (LLMs) Introduction to LangChain.js. The framework allows developers to create, experiment, and analyze language models and agents, providing a rich set of features for natural language processing applications. It enables the creation of agents that use LLMs as reasoning engines to determine what actions to take and what inputs those actions should receive. LangChain.js provides a solution flow for building intelligent agents using LangGraph Build a LangChain.js agent for Azure – JavaScript on Azure | Microsoft Learn supporting tools that serve as interfaces for agents to interact with external LangchainLangchain systems. The framework provides a standard interface for agents, as well as the ability to create custom agents GitHub – langchain-ai/langchainjs: ๐Ÿฆœ๐Ÿ”— Build applications with context-aware reasoning ๐Ÿฆœ๐Ÿ”—, making it ideal for developers who need to integrate AI capabilities into web applications and build context-aware reasoning systems.

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Last updated: July 21, 2025