Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
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Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
Parse Server for Node.js / Express
Low code web framework for real world applications, in Python and Javascript
The future of Node.js REST development
Swagger Editor
A boilerplate for building production-ready RESTful APIs using Node.js, Express, and Mongoose
Java DSL for easy testing of REST services
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.
Java wrapper for the popular chat & VOIP service: Discord https://discord.com
:date: Easy!Appointments - Self Hosted Appointment Scheduler
Library for OpenAPI 3 with spring-boot
Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.
Node.js Basics ( v24.x )
Confluent Schema Registry for Kafka
Elassandra = Elasticsearch + Apache Cassandra
🚀 A RESTful API generator for Node.js
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.
🚀 A real-time monitoring dashboard for Claude Code & Codex, built with SQLite3, Node.js, Express, React, Vite, TailwindCSS, & WebSockets. It tracks sessions, agent activity, tool usage, and subagent orchestration, providing live analytics, a Kanban status board, status notifications, a cute buddy, & an interactive web UI/MacOS/Windows native app.
(Official) The DSpace digital asset management system that powers your Institutional Repository
A strongly typed, runtime-agnostic web framework for building structured HTTP services in JavaScript, built on Web Standards.
The first REST API framework for Java
A framework for building integrations and APIs