Giant Swarm provides a fully-managed Kubernetes cluster, which can be used to deploy containers as you see fit. With Giant Swarm, you have full admin rights to the cluster through its API, so you can change anything that is accessible through the Kubernetes Giant Swarm API.
The Giant Swarm API attempts to behave in a restful way. As a developer, you access resources using the GET method and, for example, delete them using the same path and the DELETE method. Clients authenticate by passing an auth token and Auth tokens can be obtained using the createAuthToken operation.