We have a requirement to rotate AWS IAM Keys on a regular basis. Since the API Integration for the AWS Application requires an Access Key and Secret in order to query AWS we are going to need to update this key on a regular basis. 

I have looked through the mangement API for a way to set this key programmatically so we could include it in our devops key rotation process but I don't seem to be able to find how to set it. 

Am I missing it or is this functionality just not available?