Zoom Realtime Media Streams (RTMS)

Expert guidance for accessing live audio, video, transcript, chat, and screen share data from Zoom meetings, webinars, Video SDK sessions, and Zoom Contact Center Voice in real-time. RTMS uses a WebSocket-based protocol with open standards and does not require a meeting bot to capture the media plane.

Read This First (Critical)

RTMS is primarily a backend media ingestion service.

• Your backend receives and processes live media: audio, video, screen share, chat, transcript.
• RTMS is not a frontend UI SDK by itself.
• Processing is event-triggered: backend waits for RTMS start webhook events before stream handling begins.

Optional architecture (common):

• Add a Zoom App SDK frontend for in-client UI/controls.
• Stream backend RTMS outputs to frontend via WebSocket (or SSE, gRPC, queue workers, etc.).

Use RTMS for media/data plane, and use frontend frameworks/Zoom Apps for presentation + user interactions.