# API Overview

The CSS API is a self-developed API that complies with RESTful API design specifications. You can call CSS APIs to implement the CSS functions described in Table 1.

Table 1 API description
Type | Description
--- | ---
Cluster Management APIs | You can use cluster management APIs to create clusters, scale out a cluster, view cluster details, and obtain instance specifications.
Snapshot Management APIs | Snapshots can be used to back up and restore data. You can use snapshot management APIs to create, restore, or delete a snapshot.