Access to Stax Api's via Stax SDK requires an API token (access key and secret) populated in your account for use with Stax Orchestrator application.
Follow Stax's guide to create the API token. After you create the token, populate the following SSM parameters into your AWS Account,
/orchestrator/stax/access/key- Stax Access Key/orchestrator/stax/access/key/secret- Stax Access Key Secret