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.
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Agentic AI Framework for Java Developers
- artificial-intelligence
- java
- spring-ai
- agentic
The modern Java bytecode editor
- java
- bytecode
- bytecode-engineering
- reverse-engineering
An AI-powered next-generation open source real-time observability system.
Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.
- camel
- integration
- java
- microservices
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
- mock-server
- proxy
- java-client
- javascript-client
Agentic Orchestration Platform
- microservices
- orchestration-framework
- workflow-engine
- java
The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI
Make an old Android TV fast again with Claude Code or Codex: a tiny ad-free home screen plus the prompt to clean it up
JVM Profiler Sending Metrics to Kafka, Console Output or Custom Reporter
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.
- java
- elasticsearch
- full-text-search
- lucene
(UNMAINTAINED) inspectIT is the leading Open Source APM (Application Performance Management) tool for analyzing your Java (EE) applications.
A lightweight, modular Java application framework for web and CLI development, designed for AI integration and plugin-based architecture. Enabling developers to create robust solutions with ease for building efficient and scalable applications.
- java
- lightweight-framework
- modular-design
- tinystruct
An Android AI Agent built on DeepSeek Harness, with Android Use tools, voice and a cat companion.
用 Java 21 从零构建的终端 AI 编程助手
Kommunicate Android AI Agent SDK
- chat
- live
- chatbot
- support
LLM and agent evaluation for Java & Kotlin. Runs in JUnit and CI. Spring AI, LangChain4j, Koog, Embabel, and any LLM client.
- agent-evaluation
- evaluation-framework
- evaluation-metrics
- java
Anahata ASI - Artificial Super Intelligence - Cross-Platform, Modular, Enterprise Ready, Open Source, Pure Java, AGI and ASI Containers. Context Window Garbage Collector, Stateful Toolkits, Flight Recorder. Autonomous Observable Auditable JVM Agent with JIT java code execution. Anahata ASI SDK, Anahata ASI Desktop, Anahata ASI Studio - NetBeans.
The Spring Boot of Selenium — conventions and sensible defaults for Java test automation, without hiding WebDriver.
- automation-framework
- selenium
- test-automation
- ai-testing
The EU & UK compliance plane for Google ADK.