letsignal
letsignal is an open-source signaling platform designed to coordinate real-time communication between distributed clients. It provides lightweight signaling channels, presence information, and small-data messaging, primarily intended for WebRTC signaling and app-to-app coordination. The goal is to separate signaling traffic from application data, allowing clients to negotiate connections, exchange session descriptions, and be notified of user presence without embedding signaling logic in each app.
Historically, letsignal emerged in the early 2020s to address the need for a minimal, scalable signaling layer.
Architecture and features: letsignal uses stateless signaling APIs and a WebSocket real-time channel, with optional queues
Usage and reception: developers use letsignal to coordinate peers, manage signaling for WebRTC apps, and implement
See also: WebRTC signaling, real-time messaging, publish-subscribe systems.