Do you have a Postman Workspace or Collections for the APIs?

Yes, we have a Postman Workspace with two collections - one for the Content Delivery API and another for the Management API. You can find both of those with the following workspace link and fork the collections to start making requests: https://www.postman.com/storyblokproject/workspace/storyblok-apis-content-delivery-and-management-api/overview