API Overview

**Table 1** APIs for managing instances
API	Description
Lifecycle management	Create instances, modify instance information, query and delete instances, and query the broker list.
Consumer group management	Query, create, delete, and modify consumer groups, query the consumer list or details, and reset the consumer offset.
Topic management	Create, delete, query, and modify topics, query the consumer group list of a topic, and query the number of messages in a topic.
Message management	Query messages and their traces, export and resend dead letter messages, and verify consumption.
User management	Create, query, modify, and delete users, query the authorized user list of a topic, and query the authorized user list of a consumer group.
Metadata migration APIs	Create a metadata migration task, query a specified or all migration tasks of an instance, and delete a metadata migration task.
Other APIs	Query AZ information.
Tag management	Add or delete tags.
Specification modification management APIs	Query product information for instance specification modification, and modify instance specifications.