Apache Kafka - A distributed event streaming platform

NATS Streaming System Server

A Java WebSocket/HTTP server based on the Atmosphere and Netty Framework

Stomp implementation

Bower package for atmosphere

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

Atmosphere.js for Node.js

atmosphere-javascript

Mirror of Apache Olingo

All Atmosphere's Extensions and Plugin

Atmosphere's samples.

Asynchronous Http and WebSocket Client library for Java

Swagger Socket: A REST over WebSocket

Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.

Real-time transport layer for Java AI agents. Build once with @Agent — deliver over WebSocket, SSE, gRPC, and WebTransport/HTTP3. Talk MCP, A2A and AG-UI.

Apache CXF

a bunch of test and demo components