GraphCanon updated 1w · GitHub synced 1w
Decision brief
LangChain4j is a Java library for building applications utilizing Large Language Models (LLMs) on the JVM. It provides a unified API over various LLM providers and vector stores to simplify tool calling, agent creation,R
Good fit when
- If you are working in a Java environment and aim to integrate Large Language Models into your applications
- For those who prefer idiomatic Java libraries that seamlessly integrate with modern enterprise frameworks like Quarkus or Spring Boot
Avoid when
- Avoid if your project exclusively uses languages other than Java, as LangChain4j is specifically designed for Java-based projects on the JVM
- If you require a framework that heavily supports non-JVM based large language models and doesn't integrate well with modern enterprise Java frameworks like Quarkus or Spring Boot
Observed Jul 11, 2026 · Source: enrich:decision_facts
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Maintenance and security
Full trust report- Maintenance
- Very active (1d since push)
- As of 1w
- Provenance
- Not a fork · Organization account
- As of 1w
- Security (OSV)
- No lockfile
- As of 1mo
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Install
git clone https://github.com/langchain4j/langchain4jHow it fits your stack(7)
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Overview
LangChain4j is a Java-based library that enables developers to create applications powered by Large Language Models (LLMs) on the Java Virtual Machine. It provides a unified interface over popular LLM providers and vector stores, facilitating tool calling, agent development, and Retrieval-Augmented Generation (RAG).
Capability facts
- Languages
- java
Source: github.language · Aug 8, 2026
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README
Getting Started
Getting started guide can be found here.
For agents
This page has a .md twin and JSON over the API.