The Twilio Content API and Content Editor are now in Public Beta, allowing developers to send "rich content" across various messaging channels such as WhatsApp, Facebook Messenger, SMS, and MMS. The Content API provides a developer interface for sending rich content with code, while the Content Editor is a graphical-user interface within the Twilio Console that enables non-technical users to build without writing code. To get started with the Content API, developers need to configure their Messaging Service, sender, and create a content type template using the Content Editor or a client SDK. The Content API can be used to send quick replies on WhatsApp and Facebook Messenger, as well as fallback SMS messages.