Skip to main content

LangChain4j

LangChain4j Logo

Supercharge your Java application with the power of LLMs

Easy interaction with LLMs and Vector Stores

All major commercial and open-source LLMs and Vector Stores are easily accessible through a unified API, enabling you to build chatbots, assistants and more.

Tailored for Java

Smooth integration into your Java applications is made possible thanks to Quarkus and Spring Boot integrations. There is two-way integration between LLMs and Java: you can call LLMs from Java and allow LLMs to call your Java code in return.

AI Services, RAG, Tools

Our extensive toolbox provides a wide range of tools for common LLM operations, from low-level prompt templating, chat memory management, and output parsing, to high-level patterns like AI Services and RAG.