zoomSdk.startRTMS returns 40316 in Local Test despite RTMS scopes enabled

Question

I’m building a Zoom App that uses RTMS for transcript-only live meeting ingestion. The app is in Development / Local Test mode. I have enabled RTMS-related scopes, configured Event Subscriptions with a webhook endpoint, and enabled the RTMS surface/auto-start option where available.

When the app runs inside the Zoom desktop client and calls:

zoomSdk.startRTMS()

the SDK returns:

code: 40316
msg: "This api is not supported"
error: "API hasn't passed marketplace verification"

Questions:

1. Is `zoomSdk.startRTMS()` available in Local Test / Development apps, or does it require Marketplace review/verification first?
2. Are there additional account-level entitlements or approvals needed before RTMS APIs are exposed to a Zoom App?
3. If RTMS is intended to support host-authorized transcript streaming, what is the recommended development/test path before Marketplace submission?

The intended use case is transcript-only RTMS ingestion for a host-launched Zoom App, not a bot participant joining the meeting.

Thanks for any guidance.

ExpertswhoJohn · Accepted Answer

hi ​@Chris Butler,RTMS is a paid service and a requested service.Have you requested that RTMS be enabled on your account? You need to do that to make use of it. See the form at the bottom of this pagehttps://www.zoom.com/en/realtime-media-streams/When you go into production, the RTMS service is a paid service.The Account admin will also have to enable RTMS on your account.https://developers.zoom.us/docs/rtms/meetings/getting-started/Hope that helps. I am a Zoom developer myself.There is a separate forum for developers.https://devforum.zoom.us/John

zoomSdk.startRTMS returns 40316 in Local Test despite RTMS scopes enabled

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