The DigitalOcean API lets you manage DigitalOcean resources programmatically using conventional HTTP requests. All the functionality available in the DigitalOcean Control Panel is also available through the API.
See the API documentation on the container registry for more information.
doctl is a command-line interface for the DigitalOcean API and supports many of the same actions.
See the doctl documentation on the container registry for more information.