Realtime application framework (Node.JS server)
A Socket.IO client library for Java
Socket.IO-client for iOS/OS X
A 100% native C# implementation of ZeroMQ for .NET
A client library to multiplex connections from and to iOS devices
A glib-like multi-platform c library
An asynchronous event driven PHP socket framework
A C++ header-only HTTP/HTTPS server and client library
A modern I/O library for Android, Java, and Kotlin Multiplatform
Slack API in Go - community-maintained fork
A powerful server and network library, including coroutine
A go-style coroutine library in C++11 and more
nanomsg library
Cross-platform asynchronous I/O
A Python library for the Docker Engine API
Easy to use cryptographic framework for data protection
Convenience sockets library for FreeBSD and GNU/Linux
Coroutine-based concurrency library for PHP
common java utility library
Cross-platform C++ library for use as a default application framework.
API for Password Manager Daemon (pwmd)
c++/java library for thread support and other useful stuff
Websockets in swift for iOS and OSX
Development framework based on message driven provided
A software components library