Repository Index

一款免费开源的 AI 低代码平台，也是 AI 时代构建复杂业务系统的开源基座！权限、多租户、工作流、报表、大屏、AI 知识库等通用能力开箱即用，AI 只需生成业务差异部分。AI Skills 一句话生成完整系统——建表、前后端代码、菜单权限、BPM 流程、表单、报表、大屏全自动。内置 AI 应用平台（聊天、知识库、流程编排、MCP），兼容主流大模型

• antd
• activiti
• codegenerator
• springcloud

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.

• huggingface
• java
• langchain
• openai

Lightweight Java and Android library for integration with Ethereum clients

• ethereum
• blockchain
• java
• solidity

A library for working with Bitcoin

• java
• bitcoin
• library
• blockchain

Dependency-Track is an intelligent Component Analysis platform that allows organizations to identify and reduce risk in the software supply chain.

• owasp
• appsec
• security
• bom

Bitcoin Wallet app for your Android device. Standalone Bitcoin node, no centralized backend required.

• bitcoin
• bitcoinj
• bitcoin-wallet
• android

Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3. Speaks MCP, A2A, and AG-UI.

• java
• websocket
• spring-boot
• event-driven

编程导航 AI 开发实战新项目，基于 Spring Boot 3 + Java 21 + Spring AI 构建 AI 恋爱大师应用和 ReAct 模式自主规划智能体YuManus，覆盖 AI 大模型接入、Spring AI 核心特性、Prompt 工程和优化、RAG 检索增强、向量数据库、Tool Calling 工具调用、MCP 模型上下文协议、AI Agent 开发（Manas Java 实现）、Cursor AI 工具等核心知识。用一套教程将程序员必知必会的 AI 技术一网打尽，帮你成为 AI 时代企业的香饽饽，给你的简历和求职大幅增加竞争力。

• ai
• ai-model
• backend
• frontend

OpenKeychain is an OpenPGP implementation for Android.

• android
• openpgp

Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.

• geospatial
• ofbiz
• web-framework
• java

Simple and pure block explorer you can run on top of a full node

• bitcoin
• blockchain
• node
• block

An open-source EOS wallet project

Reduce boilerplate in RxJava by abstracting chained operators like flatMap, concatMap, switchMap, or compose [STABLE]

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

Java library for interacting with the Waves blockchain.

• java-library
• blockchain
• cryptography

Java framework to write tests for your dApps and other smart contracts on Waves blockchain

• wavesplatform
• waves
• blockchain
• smart-contracts