Top 23 Java API Projects

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• openapi-generator

  237 21,431 9.9 Java

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

  

  Project mention: In-Depth Comparison: How to Choose the Most Suitable Enhanced Request Library | dev.to | 2024-08-31

  Since @tanstack/react-query and swr give all control of the request to the user, the API automation solution is provided by third-party request tools. For example, axios and fetch can automatically generate request codes through openapi-generator or @openapitools/openapi-generator-cli.

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

• JDA

  18 4,308 8.7 Java

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

  

  Project mention: Create a Discord Bot using Java | /r/learnprogramming | 2023-11-24

• Apache Log4j 2

  108 3,357 9.9 Java

  Apache Log4j 2 is a versatile, feature-rich, efficient logging API and backend for Java.

  

  Project mention: Hackers exploited Windows 0-day for 6 months after Microsoft knew of it | news.ycombinator.com | 2024-03-05

  I don't think that's a good example. While Apache devs are volunteers and Microsoft devs are employees, they were criticized for their slow response time and seeming lack of urgency until it was far too late.

  https://github.com/apache/logging-log4j2/pull/608#issuecomme...

• docker-java

  4 2,918 6.6 Java

  Java Docker API Client

  

• swagger2markup

  2 2,492 1.8 Java

  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.

  

• Discord4J

  4 1,778 8.7 Java

  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.

  

• serverless-java-container

  38 1,488 9.3 Java

  A Java wrapper to run Spring, Spring Boot, Jersey, and other apps inside AWS Lambda.

  

  Project mention: Scaffolding Serverless Web Application on AWS | dev.to | 2024-07-22

• cats

  23 1,172 9.8 Java

  CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance. (by Endava)

  

  Project mention: Build a simple fuzzer: Part 1 | news.ycombinator.com | 2024-09-13

  I've followed similar approach for building a REST API fuzzer for the past 3 years: https://github.com/Endava/cats. Fuzz testing is still not widely adopted considering the obvious benefits and usually minimum setup time.

• github-api

  2 1,130 9.3 Java

  Java API for GitHub

  

• crAPI

  2 1,081 7.9 Java

  completely ridiculous API (crAPI)

  

• Elide

  1 1,001 9.0 Java

  Elide is a Java library that lets you stand up a GraphQL/JSON-API web service with minimal effort.

  

• zerocode

  3 893 8.7 Java

  A community-developed, free, opensource, automated testing framework for microservices APIs, Kafka(Data Streams) and Load testing. Zerocode Open Source enables you to create, change and maintain your automated test scenarios via simple JSON or YAML files. Visit documentation below:

• openapi-diff

  3 807 8.7 Java

  Utility for comparing two OpenAPI specifications.

  

  Project mention: Using OpenAPI to Detect Breaking Changes in tRPC | dev.to | 2023-10-16

  Introducing our star player for detecting breaking changes: OpenAPI Diff. The good news? You can fire it up locally with Docker. Here’s how:

• Javacord

  2 760 6.6 Java

  An easy to use multithreaded library for creating Discord bots in Java.

  

• PublicAPI

  5 533 5.1 Java

  Official Java implementation of the Hypixel Public API.

  

  Project mention: Hypixel's Public API. | /r/hypixel | 2023-11-07

  I created a GitHub issue for some of the errors on the API.

• Para

  0 528 8.2 Java

  Multitenant backend server for building web and mobile apps rapidly. The backend for busy developers. (self-hosted or hosted) (by Erudika)

  

• packetevents

  1 519 9.8 Java

  PacketEvents is emerging as a strong contender in the realm of Minecraft packet processing libraries. Designed to simplify packet manipulation while delivering high performance, this powerful tool aims to demystify the complexities of projects utilizing packets.

• DeepfakeHTTP

  34 507 1.8 Java

  DeepfakeHTTP is a web server that uses HTTP dumps as a source for responses.

• Membrane Service Proxy

  1 457 9.6 Java

  API gateway for REST, OpenAPI, GraphQL and SOAP written in Java.

  

• opentest

  1 451 4.5 Java

  Open source test automation tool for web applications, mobile apps and APIs

  

• XSeries

  1 388 8.9 Java

  Library for cross-version Minecraft Bukkit support and various efficient API methods.

• twitch4j

  1 366 8.8 Java

  Modular Async/Sync/Reactive Twitch API Client / IRC Client

  

• jcabi-github

  2 305 8.3 Java

  Java Object-Oriented Wrapper of GitHub API, with a fake implementation of the entire GitHub API (for your tests)

  

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• Build a simple fuzzer: Part 1

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• A note from our sponsor - SaaSHub
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