API Overview

IMS APIs include native OpenStack APIs and extension APIs.

A combination of the two types of APIs allows you to use all functions provided by IMS. For example, you can use either native OpenStack APIs or extension APIs to create private images.

**Table 1** API description
Type	Subtype	Description
IMS APIs	Image	Create, query, and export images.
	Image sharing	Share private images with other tenants.
	Image replication	Replicate an existing image as another one. When replicating an image, you can change the image attributes to meet the requirements of different scenarios.
	Image quota	Query the number of private images in the current region.
	Image jobs	Query the execution status of an asynchronous job.
Native OpenStack API	Image	Create, query, and export images.
	Image schema	An image schema is used to display details of an images or image entity, such as the entity's attributes and their data types. With an image schema, you can understand basic information about an image.
	Image sharing	Share private images with other tenants.