langchain4j
About
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Jav
⚡ Quick Start
git clone https://github.com/langchain4j.git🏷️ Topics
💻 Supported Platforms
📋 Technical Details
- Repository
- langchain4j/langchain4j
- Language
- Java
- License
- Apache-2.0
- Stars
- 12,548
- Category
- text generation
- Difficulty
- beginner
- Last Updated
- 2026-07-08
- Platforms
- mac, linux, windows
Frequently Asked Questions About langchain4j
What is langchain4j?
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Jav
How do I install langchain4j?
Run: git clone https://github.com/langchain4j.git
What are the system requirements for langchain4j?
langchain4j supports mac, linux, windows. It is written in Java and is best suited for beginner-level users. The repository has 12,548+ stars on GitHub and is licensed under Apache-2.0.