An API can be thought of as an instruction manual for communication between multiple software apparatuses. For example, an API may be used for database communication between web applications. By extracting the implementation and relinquishing data into objects, an API simplifies programming.
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
🌱🚀一个基于Spring Boot & MyBatis的种子项目，用于快速构建中小型API、RESTful API项目~
CRAP - 开源API接口管理平台 | 完全开源、免费使用的API接口管理系统、BUG管理系统：API接口管理、文档管理、数据库表管理、接口调试、浏览器调试插件、导出word&pdf接口…..，采用SpringMVC + MyBatis + Lucene + Bootstrap + Angularjs + Iconfont + Guava Cache ，线上使用地址：http://api.crap.cn
Java API for GitHub
Java wrapper for the popular chat & VOIP service: Discord https://discord.com
A library that provides access to Android hidden APIs and internal resources.
A Java wrapper to run Spring, Spring Boot, Jersey, and other apps inside AWS Lambda.
GeoNetwork is a catalog application to manage spatially referenced resources. It provides powerful metadata editing and search functions as well as an interactive web map viewer. It is currently used in numerous Spatial Data Infrastructure initiatives across the world.
zerocode-tdd is a community-developed, free, open-source, automated testing lib for microservices APIs, Kafka(Data Streams), Databases and Load testing. It enables you to create executable automated test scenarios via simple JSON or YAML — no coding required.
magic-api 是一个接口快速开发框架，通过Web页面编写脚本以及配置，自动映射为HTTP接口，无需定义Controller、Service、Dao、Mapper、XML、VO等Java对象
A Swagger to AsciiDoc or Markdown converter to simplify the generation of an up-to-date RESTful API documentation by combining documentation that’s been hand-written with auto-generated API documentation.
A powerful open source data warehouse system
A Minecraft plugin API