What Is a Live Streaming API?

A live streaming API is a set of protocols and SDKs that let you add real-time video broadcasting to your application — a host streams video, viewers watch in real time. Here is how live streaming APIs work and what to look for.

Definition

A live streaming API provides real-time video broadcasting as a managed service. Unlike video calling (bidirectional — everyone sends and receives), streaming is one-to-many: one or more hosts broadcast, many viewers watch. The API handles video capture, encoding, distribution to viewers, and viewer-count analytics.

Streaming vs video calling

The distinction: in video calling, every participant sends and receives media (mesh or SFU). In streaming, hosts send, viewers receive. Streaming can scale to far more viewers than video calling because the server (or CDN) fans out one stream to many, rather than negotiating peer connections for each. openbnet supports both: Video & Voice Calling (mesh, bidirectional) and Interactive Live Streaming (bridge-tunnel, multi-host broadcast to viewers).

How live streaming works

• Host captures video/audio via getUserMedia (browser) or camera SDK (mobile)
• Host connects to the streaming server over WebSocket
• Server broadcasts the host media to connected viewers
• Viewers receive the stream and render it in a video element
• Analytics track viewer counts, stream duration, latency
• For multi-host: a bridge-tunnel architecture composites multiple host streams

Interactive vs broadcast streaming

There are two flavors of live streaming. Broadcast streaming (Twitch, YouTube Live) uses CDN-based HLS/DASH — high latency (5–30 seconds) but scales to millions of viewers. Interactive streaming (Instagram Live, Twitter Spaces, Discord Go Live) uses WebRTC — low latency (<500ms) but caps at a few hundred viewers per mesh. openbnet focuses on interactive streaming with bridge-tunnel architecture, supporting multi-host channels with co-hosts, per-bridge audio control, and real-time analytics.

What to look for

• Latency: <1s for interactive, 5–30s acceptable for broadcast
• Multi-host: can multiple hosts broadcast to the same channel?
• Viewer scale: how many concurrent viewers per stream?
• Analytics: real-time viewer counts, stream health, latency metrics
• Cross-platform SDKs: Web, iOS, Android, Flutter, React Native
• Recording/archiving: can you save streams for replay?

openbnet Live Streaming API

openbnet Interactive Live Streaming supports multi-host channels with co-host support, a bridge-tunnel architecture (webcam, screen, audio bridges), dynamic bridge add/remove mid-stream, per-bridge audio control for viewers, real-time analytics and viewer counts, latency measurement, and a REST API for live streams and analytics. Start free — no credit card.

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