--- title: Overview url: https://docs.kaltura.com/docs/events-collaboration/app-registry-api/app-registry-overview --- ## Kaltura App Registry API The App Registry is a centralized service for registering and managing Kaltura application instances — KMS sites, Events Platform instances, custom applications, and more. Each registered app gets a unique GUID (`id`) used by other platform services (such as the [User Profile API](/docs/events-collaboration/user-profile-api/user-profile-overview)) to associate data with specific application contexts. When you create a virtual event through the Events Platform, an app is automatically registered with `appType: "epmEvent"`. You can also register apps directly for custom integrations. **Base URL:** `https://app-registry.nvp1.ovp.kaltura.com/api/v1` (production NVP region) **Auth:** `Authorization: Bearer <KS>` header (ADMIN KS, type=2, requires `ADMIN_BASE` permission) **Format:** JSON request/response bodies, all endpoints use POST **Regions:** NVP (default `nvp1`), DE (`frp2`), EU/Ireland (`irp2`), Canada (`cap2`), Australia (`syp2`) — see API Getting Started §4.5