Account API vs IEX Cloud
If you need a Finance API that's easy to integrate, go with IEX Cloud.
Account API
This API is used for the classic integration. If you are just starting your implementation, refer to our [new integration guide](https://docs.adyen.com/marketplaces-and-platforms) instead. The Acc...
Account API
- Simple API key authentication
- HTTPS supported
IEX Cloud
- Simple API key authentication
- HTTPS supported
- CORS enabled for frontend use
| Feature | Account API | IEX Cloud |
|---|---|---|
| Authentication | apiKey | apiKey |
| HTTPS | Yes | Yes |
| CORS | Unknown | Yes |
When to use which?
IEX Cloud works directly from the browser with CORS enabled, making it better for frontend-only apps.