<note> <p>This documentation is for version 1 of the Amazon Kinesis Data Analytics API, which only supports SQL applications. Version 2 of the API supports SQL and Java applications. For more information about version 2, see <a href="/kinesisanalytics/latest/apiv2/Welcome.html">Amazon Kinesis Data Analytics API V2 Documentation</a>.</p> </note> <p>Returns information about a specific Amazon Kinesis Analytics application.</p> <p>If you want to retrieve a list of all applications in your account, use the <a href="https://docs.aws.amazon.com/kinesisanalytics/latest/dev/API_ListApplications.html">ListApplications</a> operation.</p> <p>This operation requires permissions to perform the <code>kinesisanalytics:DescribeApplication</code> action. You can use <code>DescribeApplication</code> to get the current application versionId, which you need to call other operations such as <code>Update</code>. </p>