---
title: "LangChain4j"
description: "LangChain4j is a Java library that provides APIs, tools, and patterns to easily build and integrate LLM-powered Java applications."
sidebarTitle: "Overview"
---

<Card title="LangChain4j" href="https://docs.langchain4j.dev/" icon="globe" horizontal>
[](https://docs.langchain4j.dev/)
</Card>

<Columns cols={2}>
  <Card img="https://storage.googleapis.com/arize-phoenix-assets/assets/images/phoenix-docs-images/f1e5c9e9-image.avif" horizontal title="LangChain4j Tracing" href="/docs/phoenix/integrations/java/langchain4j/langchain4j-tracing"/>
</Columns>
