aws iam create-service-specific-credential
Generates a set of credentials consisting of a user name and password that can be used to access the service specified in the request. AWS CLI reference
3 options Its page in the AWS CLI reference
Options
--credential-age-daysThe number of days until the service specific credential expires.--service-nameThe name of the Amazon Web Services service that is to be associated with the credentials.--user-nameThe name of the IAM user that is to be associated with the credentials.