Repository Index

A meticulous HTTP client for the JVM, Android, and GraalVM.

• java
• android
• kotlin
• graalvm

Framework for quickly creating connected applications in Kotlin with minimal effort

• kotlin
• web-framework
• asynchronous
• async

A modern JSON library for Kotlin and Java.

A simple and modern Java and Kotlin web framework

• kotlin
• java
• rest-api
• web-framework

The SMS Gateway for Android™ app enables sending and receiving SMS messages through an API that can be accessed directly on the device or via a cloud server when direct device access is not possible.

• android
• api
• gateway
• sms

Kotlin multiplatform / multi-format serialization

• kotlin
• serialization
• json
• cbor

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

• agentframework
• agentic-ai
• agents
• ai

The easiest HTTP networking library for Kotlin/Android

• kotlin
• rxjava
• networking
• android

gRPC and protocol buffers for Android, Kotlin, Swift and Java.

GraphQL for Java with Spring Boot made easy.

• graphql
• java
• spring-boot
• dgs

Libraries for running GraphQL in Kotlin

• graphql
• graphql-java
• kotlin
• graphql-server

A minimalistic, simple-to-use API linter

• api
• api-management
• swagger
• spring-boot

A schema-first tool for graphql-java inspired by graphql-tools for JS

• graphql
• graphql-java
• java
• kotlin

Shift-left API Integration | Auto-fix integration drift before integration. Specmatic turns API specifications into executable contracts, continuously verifying that every change made by AI coding agents and engineers stays true to the desired behaviour. Ship AI-ready APIs 10x faster, from intent to implementation, with Spec-Driven API Development.

• contract-testing
• microservices
• contract-driven-development
• cdd

A simple and modern Java and Kotlin vert.x web framework

• kotlin
• java
• vertx
• vert

TranslatedModern Reactive CQRS Architecture Microservice development framework based on DDD and EventSourcing

• cqrs
• domain-driven-design
• event-driven
• event-sourcing

Pure Kotlin GraphQL implementation

• kotlin
• graphql

The invisible REST and web framework

Java library that provides an interface to directly interact with Valve's Steam servers.

• steam
• valve
• java
• steamkit2

A tool to validate text inside TextInputLayout

• edittext
• validation
• validator
• android

Kobby is a codegen plugin of Kotlin DSL Client by GraphQL schema. The generated DSL supports execution of complex GraphQL queries, mutation and subscriptions in Kotlin with syntax similar to native GraphQL syntax.

• kotlin
• graphql
• client
• code-generation

Yet another Event Sourcing experiment. A project exploring Vert.x to develop Event Sourcing / CQRS applications.

• cqrs-es
• vertx
• kotlin
• event-sourcing

Medeia JSON-Schema Validator

Gradle plugin that generates the actual db schema after applying Liquibase migrations

• database
• gradle-plugin
• java
• liquibase