I have access to multiple AWS accounts through AWS Cross-Account Role. I have to switch the role to enter into other accounts to view the billing details. Is there any tool that I can use to get the alerts for the billing. One option is costBuddy by intuit, however, it requires the child account's IAM credentials. We are looking for a tool that doesn't require security credentials and uses the cross-account role for the billing alerts. Thank you very much in advance.