> [!WARNING]
>
> **Preview**
>
>
> This product is
>
> subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
> [Service Specific
> Terms](https://docs.cloud.google.com/terms/service-terms#1).
>
> Pre-GA products are available "as is" and might have limited support.
>
> For more information, see the
> [launch stage descriptions](https://cloud.google.com/products/#product-launch-stages).

Cloud API Registry lets you discover, govern, use, and monitor APIs provided by
Google, or by your organization through Apigee API hub. The registry
serves as a centralized catalog for API discovery, and provides a single
endpoint through which you can find and access metadata about various APIs
available to a Google Cloud user or organization.

Apigee API hub is a platform that helps you manage your organization's
APIs. It serves as a central repository for API information.
Cloud API Registry imports metadata from Apigee API hub, making API
resources easier for you to discover and use.
[Learn more about Apigee API hub](https://docs.cloud.google.com/apigee/docs/apihub/what-is-api-hub).

Service Usage is a service that lets you control enabling and disabling APIs
across your organization's resource hierarchy: projects, folders, and
organizations. Permissions through a Service Usage role are required to
enable and disable APIs.
[Learn more about Service Usage](https://docs.cloud.google.com/service-usage/docs/overview).