kernelpanic0x11 / instagram-api-workbench

Instagram Android API evidence, OpenAPI catalog, and local JavaScript Swagger workbench

AstralAirAnchorage78 / Resp-Minecraft-AIO-Soft

Free/Best Software for Minecraft Yet

RadiusAxolotlChimney / Resp-Minecraft-AIO-Soft

Free/Best Software for Minecraft Yet

OpenAPITools / openapi-generator

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

redisson / redisson

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..

dromara / Sa-Token

✨ 开源、免费、一站式 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API 参数签名

APIJSON / APIJSON

🏆 Real-Time no-code, powerful and secure ORM 🚀 providing APIs and Docs without coding by Backend, and Frontend(Client) can customize response JSONs 🏆 实时 零代码、全功能、强安全 ORM 库 🚀 后端接口和文档零代码，前端(客户端) 定制返回 JSON 的数据和结构

questdb / questdb

QuestDB is a high performance, open-source, time-series database

metersphere / metersphere

MeterSphere 是新一代的开源持续测试工具，内置 AI 助手，让软件测试工作更简单、更高效，不再成为持续交付的瓶颈。

langchain4j / 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.

PaperMC / Paper

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

jhy / jsoup

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

karatelabs / karate

Test Automation Made Simple

apache / shenyu

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

traccar / traccar

Open source GPS tracking platform - self-hosted or managed, 200+ device protocols

swagger-api / swagger-core

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

wiremock / wiremock

A tool for mocking HTTP services

rest-assured / rest-assured

Java DSL for easy testing of REST services

apache / camel

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.

microsoft / typespec

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rubenlagus / TelegramBots

Java library to create bots using Telegram Bots API

oshi / oshi

Native Operating System and Hardware Information

mock-server / mockserver-monorepo

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.

spring-cloud / spring-cloud-gateway

An API Gateway built on Spring Framework and Spring Boot providing routing and more.

discord-jda / JDA

Java wrapper for the popular chat & VOIP service: Discord https://discord.com

knowm / XChange

XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

FasterXML / jackson-databind

General data-binding package for Jackson: works on streaming API (core) implementation(s)

networknt / light-4j

A fast, lightweight and more productive microservices framework

apache / logging-log4j2

Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.

apache / linkis

Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.

qaiu / netdisk-fast-download

聚合多种主流网盘的直链解析下载服务, 一键解析下载，已支持夸克网盘/uc网盘/蓝奏云/蓝奏优享/小飞机盘/123云盘等. 支持文件夹分享解析. 体验地址: https://lz.qaiu.top https://189.qaiu.top

Minestom / Minestom

26.2 Lightweight Minecraft server

docker-java / docker-java

Java Docker API Client

FabricMC / fabric-api

Essential hooks for modding with Fabric.

apache / hugegraph

A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)

MewX / light-novel-library_Wenku8_Android

[CASUALLY MAINTAINED] 轻小说文库 (Wenku8.com) 安卓版第三方公益App，始于2014年的初版Material Design风格、非盈利、Play Store上安装包最小的轻小说阅读器 (light novel reader)。目前网站的API由于被大量滥用，已更新成我自己架的 Cloudflare Worker API 中继节点，不然的话网站关闭API就全军覆没了。

erupts / erupt

Code as configuration. Annotate a Java entity with @Erupt and ship a production-grade admin backend in minutes — UI, RBAC, audit logs and APIs, all generated at runtime. No codegen, no frontend.

spring-projects / spring-data-elasticsearch

Provide support to increase developer productivity in Java when using Elasticsearch. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

anonfaded / FadCam

Open-source, ad-free Android multimedia recorder with background video recording, screen recording, live streaming, and remote camera control

jOOQ / jOOR

jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Other languages have much simpler constructs to access type meta information at runtime. Let us make Java reflection better.

opensolon / solon

🔥 Java enterprise application development framework for full scenario: Restrained, Efficient, Open, Ecologicalll!!! 700% higher concurrency 50% memory savings Startup is 10 times faster. Packing 90% smaller; Compatible with java8 ~ java26; Supports LTS. (Replaceable spring)

eclipse-collections / eclipse-collections

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

apache / logging-flume

Apache Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log-like data

LSPosed / AndroidHiddenApiBypass

LSPass: Bypass restrictions on non-SDK interfaces

confluentinc / schema-registry

Confluent Schema Registry for Kafka

hapifhir / hapi-fhir

🔥 HAPI FHIR - Java API for HL7 FHIR Clients and Servers

gaul / s3proxy

Access other storage backends via the S3 API

FasterXML / jackson-core

Core part of Jackson that defines Streaming API as well as basic shared abstractions

amaembo / streamex

Enhancing Java Stream API

apache / poi

Mirror of Apache POI gitbox. The Java API for Microsoft Documents.

jonashackt / spring-boot-vuejs

Example project showing how to build a Spring Boot App providing a GUI with Vue.js

jOOQ / jOOL

jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.

neoforged / NeoForge

A modding API for Minecraft: Java Edition, based on Forge

googleapis / google-cloud-java

Google Cloud Client Library for Java

microcks / microcks

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀

GIScience / openrouteservice

🌍 The open source route planner api with plenty of features.

pengrad / java-telegram-bot-api

Telegram Bot API for Java

INRIA / spoon

Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.

openmrs / openmrs-core

OpenMRS API and web application code

Discord4J / Discord4J

Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.