You need existing or new Amazon Web Services account. See How do I create and activate a new Amazon Web Services account? page in Amazon Documentation.
To deploy a cluster in your AWS account with Kublr, you’ll need to create an AWS policy and an AWS API Access Key. All cluster resources (e.g. nodes) are created in your AWS account using the AWS API and will be managed by Kublr.
Use your AWS root account credential to sign in to the AWS Management Console. If you previously signed into the console with your IAM user credentials, your browser may open the IAM user sign-in page. To avoid that, choose sign in using your root account credentials to access the AWS account sign-in page.
Policy should be created.