* [ws 8.21.0](https://github.com/websockets/ws) – A fast and tested WebSocket client and server implementation for Node.js. * [Centrifugo v6.8.0](https://github.com/centrifugal/centrifugo) – Scalable real-time messaging server supporting multiple transport protocols for building interactive applications. * [sipexer v2.0.0](https://github.com/miconda/sipexer) – Modern, flexible command-line tool for crafting and sending SIP/VoIP requests across UDP, TCP, TLS and WebSocket. * [centrifuge-js 5.6.0](https://github.com/centrifugal/centrifuge-js) – JavaScript client SDK for connecting to Centrifugo or Centrifuge-based servers using various transport methods. * [WTX wtx-ui-v0.5.0](https://github.com/c410-f3r/wtx) – Collection of transport implementations and tools focused on web technologies supporting multiple IETF RFCs and protocols. * [Socket.IO for Golang v3.0.3](https://github.com/zishang520/socket.io) – Modern, idiomatic Go implementation enabling real-time bidirectional communication over WebSockets and other transports. * [Cactus Tunnel v0.4.0](https://github.com/jeffreytse/cactus-tunnel) – TCP-over-WebSocket tunnel enabling TCP connections through the browser in restricted environments. * [Node Slack SDK @slack/web-api@7.16....](https://github.com/slackapi/node-slack-sdk) – Collection of packages for building Slack apps with APIs for notifications, bots, and interactive features. * [Supabase Flutter storage_client-v2.5....](https://github.com/supabase/supabase-flutter) – Flutter client library for interacting with Supabase backend services. * [Bifrost v0.51.8](https://github.com/s4wave/spacewave) – Peer-to-peer communications engine offering pluggable transports, multiplexed streams, encryption, meshing, and PubSub. * [KuCoin Universal SDK v1.3.1](https://github.com/Kucoin/kucoin-universal-sdk) – Unified, code-generated SDK exposing consistent Spot, Futures and Broker trading APIs across multiple languages. * [socket.io socket.io-adapter@2....](https://github.com/socketio/socket.io) – Realtime application framework for Node.js server enabling bidirectional communication. * [Ayame 2026.1.4](https://github.com/OpenAyame/ayame) – WebRTC signaling server for establishing peer-to-peer connections and integrating STUN/TURN and Web SDKs. * [GO Simple Tunnel v3.2.7-nightly.20260...](https://github.com/go-gost/gost) – Simple tunnel solution written in Golang for various protocols. * [STOMP.js v7.4.0-beta.2](https://github.com/stomp-js/stompjs) – Fully-featured STOMP-over-WebSocket client library for browsers and Node.js, implementing STOMP v1.0–1.2. * [ServerBee v1.0.0-alpha.2](https://github.com/ZingerLittleBee/ServerBee) – Lightweight self-hosted VPS monitoring system with agents, server, and web dashboard.