Content refers to assets such as images, emails, and other files that you use to create messages in Marketing Cloud Next. To manage content programmatically, use Connect API.
- Manage Content Workspaces
- Manage Content Folders
- Search for Content
- Create and Manage Emails
- Create and Manage Email Templates
- Add and Retrieve Custom Fonts
- Publish Content Items
The Salesforce Developer Community has created a Postman collection that contains sample requests for all of these functions.