LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes implementing RAG, tool calling (including support for MCP), and agents easy. LangChain4j integrates seamlessly with various enterprise Java frameworks.

Java version of LangChain, while empowering LLM for Big Data.

LangStream. Event-Driven Developer Platform for Building and Running LLM AI Apps. Powered by Kubernetes and Kafka.

🔥 Building composable LLM applications & workflow with Java.

Using Langchain's ideas to build SpringBoot AI applications | 用langchain的思想，构建SpringBoot AI应用

【AI零代码平台】助力企业快速实现搭建业务系统和构建AI应用！用户无需任何代码，即可搭建出符合复杂业务应用系统。零代码平台具备完善的应用搭建能力、表单引擎、流程引擎、仪表盘引擎、大屏、报表、AI流程、AI应用、AI知识库，可满足企业的日常需求

Quarkus Langchain4J Workshop

A Java 8+ LangChain implementation. Build powerful LLM based applications in an (enterprise) Java context.

JavaChain 用于快速搭建LLM应用，参考了 LangChain 的架构设计，基于Java8实现。

Java 23, SpringBoot 3.4.1 Examples using Deep Learning 4 Java & LangChain4J for Generative AI using ChatGPT LLM, RAG and other open source LLMs. Sentiment Analysis, Application Context based ChatBots. Custom Data Handling. LLMs - GPT 3.5 / 4o, Gemini Pro 1.5, Claude 3, Llama 3.1, Phi-3, Gemma 2, Falcon 3, Qwen 2.5, Mistral Nemo, Wizard Math

Integrates LLMs as PTransform in Apache Beam pipelines using LangChain

Build your own perplexity for your applications using research4j and integrate them for any domain specific usecases

Samples showing how to build Java applications powered by Generative AI and LLMs using LangChain4j and Spring Boot.

Dynamic Retrieval Augmented Generation for Optimized Nimble

LangChain Expression Language (LCEL) As NiFi Processors

A Java implementation of the A2A protocol, that's agent to agent scenarios with google a2a protocol

InCoder is a powerful plugin designed for JetBrains IDEs, including IntelliJ IDEA, PyCharm, and others in the JetBrains ecosystem. It seamlessly integrates advanced Large Language Models (LLMs) into your development workflow, providing you with code generation, understanding, and completion capabilities, all directly within your favorite IDE.

Learn how to build AI-infused applications with Quarkus

UltraCodeAI is an innovative AI-powered IntelliJ plugin that transforms coding with seamless assistance. It supports local/cloud LLMs like Ollama, OpenAI, and Groq for context-aware prompts, auto code error analysis, and RAG-enhanced insights. Features includes tabbed UI for chat, diagnostics, and recommendations; hover explanations; design pattern

Jeecg AI 应用开发平台，快速搭建 AI 知识库或 AI 聊天助手！一款基于大型语言模型和RAG技术的AI应用平台，重点提供图文并茂的AI知识库和智能聊天功能，界面直观，支持知识库管理、AI流程编排、模型配置、向量库对接及实时运行监控，帮助用户将知识转化为智能AI知识库，轻松实现精准智能问答。