langchain4j

Llm Open Source

★ 13,163 Stars ⑂ 2,571 Forks License: Apache License 2.0

Download Latest Release Official Website ↗ GitHub Repository ↗

About 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 Java frameworks like Quarkus and Spring Boot.

Supported Platforms

Open Source Web Cross-Platform

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