API Overview

Message & SMS provides multiple APIs, as shown in the following table.

**Table 1** APIs
Type	Subtype	Description
Application, signature, and template APIs	SMS application APIs	Used to query, create, and modify SMS applications, query the number of applications, and obtain application details.
	SMS signature APIs	Used to query, create, modify, and delete SMS signatures, obtain signature details, apply for signature activation, as well as query and upload application files.
	SMS template APIs	Used to query, create, modify, and delete SMS templates, obtain template details, query countries or regions to which SMSs are sent, query template variables, and delete templates in batches.
SMS Sending and Receiving APIs	SMS sending API	Used to send SMSs with the same content to one or more users.
	Batch SMS sending API	Used to send SMSs with different contents to different users.
	Status report receiving API	Used to receive SMS sending status reports.