# API Overview

DDS provides extension APIs, allowing you to perform specific operations using APIs.

Table 1 API description
Type | Description
--- | ---

API Version Queries

- Query all API versions.
- Query a specified API version.

Database Version Information Queries | Obtain database version information about a specified instance type.
All DB Instance Specifications Queries | Query all DB instance specifications in a specified region.
DB Instance Management | Manage DB instances, including creating, deleting, and querying DB instances.