What is a Video Chat API? Pricing and How to Add One

A video chat API is a hosted backend service that manages rooms, authentication tokens, signaling, media routing, relays, recording, and streaming for WebRTC-based calls, while client SDKs capture and render audio and video within applications. The API and SDK work together through short-lived server-issued tokens that protect API secrets, with media typically routed through an SFU to support scalable group calls and TURN relays handling restrictive networks. Key provider considerations include platform support, group-call capacity, screen sharing, chat, recording, transcription, noise suppression, streaming, SIP access, security practices, and whether encryption is merely in transit or end-to-end. Integrating VideoSDK involves creating rooms and signing tokens on a backend, then using a platform-specific client SDK or prebuilt UI to join rooms, manage tracks, and render separate audio and video streams over HTTPS. VideoSDK, Twilio, Agora, and Daily have broadly similar entry-level HD video prices of roughly $0.004 per participant minute, although their free allowances, pricing structures, and volume discounts vary, making features, operational reliability, and support important factors in provider selection.

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