* [Centrifugo v6.7.0](https://github.com/centrifugal/centrifugo) – Scalable real-time messaging server supporting multiple transport protocols for building interactive applications.

* [Bifrost v0.47.2](https://github.com/aperturerobotics/bifrost) – Peer-to-peer communications engine with pluggable transports, multiplexing, encryption, meshing, and pub/sub support.

* [centrifuge-go v0.10.12](https://github.com/centrifugal/centrifuge-go) – Go client SDK for bidirectional WebSocket communication with Centrifugo and Centrifuge-based servers.

* [socket.io socket.io-parser@3.3...](https://github.com/socketio/socket.io) – Realtime application framework for Node.js server enabling bidirectional communication.

* [protoo 4.0.8](https://github.com/versatica/protoo) – Minimalist, extensible Node.js signaling framework for multi-party real-time applications.

* [Node Slack SDK @slack/socket-mode@2...](https://github.com/slackapi/node-slack-sdk) – Collection of packages for building Slack apps with APIs for notifications, bots, and interactive features.

* [Ayame 2026.1.1](https://github.com/OpenAyame/ayame) – WebRTC signaling server for establishing peer-to-peer connections and integrating STUN/TURN and Web SDKs.

* [Socket.IO for Golang v3.0.0-rc.13](https://github.com/zishang520/socket.io) – Modern, idiomatic Go implementation enabling real-time bidirectional communication over WebSockets and other transports.