AWS Secrets Manager now supports higher request rates for the core set of API operations – GetSecretValue, DescribeSecret and ListSecrets. The request rate limits for GetSecretValue and DescribeSecret have been increased to 10,000 requests per second. The request rate of ListSecrets API operation has been increased to 100 requests per second. No action is required on your part, these increased API limits are available at no additional cost and will automatically be applied to your AWS accounts. These limit increases makes it easier for you to scale your Secrets Manager operations.
Source:: Amazon AWS