Book Store API vs External Accounts API
If you need a Books API that's easy to integrate, go with External Accounts API.
Book Store API
API for managing a book store inventory and orders
External Accounts API
The External Accounts API is used to manage accounts for Viber Business Messages, Facebook Messenger and Whatsapp for use in the [Messages](https://developer.nexmo.com/messages/overview) and [Dispa...
Book Store API
- Requires No authentication
- No HTTPS support
External Accounts API
- Simple API key authentication
- HTTPS supported
| Feature | Book Store API | External Accounts API |
|---|---|---|
| Authentication | No | apiKey |
| HTTPS | No | Yes |
| CORS | Unknown | Unknown |
When to use which?
External Accounts API supports HTTPS, which is required for production deployments and secure data handling.