Account API vs Klarna
If you need a Finance API that's easy to integrate, go with Account API.
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
Klarna
- Simple API key authentication
- HTTPS supported
- Currently flagged as inactive
| Feature | Account API | Klarna |
|---|---|---|
| Authentication | apiKey | apiKey |
| HTTPS | Yes | Yes |
| CORS | Unknown | Unknown |
When to use which?
Both Account API and Klarna offer similar capabilities as Finance APIs. Review their documentation to find the best fit for your specific use case.