# Add Realtime Media Streams to your app

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After creating a new Zoom Video SDK app, add RTMS Webhook events to it.

For more information on creating an app, sign in to marketplace.zoom.us with your Zoom Video SDK credentials.

To add RTMS to your app, you'll need to add

-   Event subscriptions for RTMS [started](/docs/api/rtms/events/) and [stopped](/docs/api/rtms/events/) events

## Prerequisites

-   [Zoom Video SDK Account with Universal Credit](/docs/video-sdk/get-credentials/)
-   RTMS feature turned on for your account

## Subscribe to RTMS started and stopped events

RTMS [uses event subscriptions](/docs/api/video-sdk/events/#tag/session) to notify your app when a session starts and stops in a session. Use these events to [work with RTMS streams](/docs/rtms/video-sdk/work-with-streams/).

### To subscribe to RTMS events

1. Sign into the [Zoom App Marketplace](https://marketplace.zoom.us/).
2. To go to the app, in the upper-right of the screen, choose **Develop** > **Build Video SDK**.
   ![The app marketplace pointing to the Manage button](/img/app-marketplace.png)
3. Under **Add feature**, turn on event subscriptions.
4. Set up the event subscription
    1. Give your subscription a name.
    2. Choose **Add Events**, search for _RTMS_, and select the events you want to subscribe to. We recommend subscribing to all of the available ones, but you'll need _RTMS Started_ and _RTMS Stopped_ for RTMS to work.
    3. Choose **Done**.
5. Enter the **Event notification endpoint URL** where you'll receive events.
6. Choose **Save**.

Now that you've added event subscriptions to your account, your app is ready to start working with RTMS.