# Orders API Use Cases (/api/rest/integration/orders-api/api-use-cases)



Orders API use cases are organized into 4 categories:

| Category                                                                                                   | Description                                                                                                                                             |
| ---------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [PayPal Checkout](/api/rest/integration/orders-api/api-use-cases/standard/)                                | Buyers are aware that PayPal is processing their payments, and they can pay using any of the PayPal-associated payment methods.                         |
| [Expanded Checkout](/api/rest/integration/orders-api/api-use-cases/advanced/)                              | Buyers don't use a PayPal account to pay for their order but prefer other payment sources. Buyers aren't aware that PayPal is processing their payment. |
| [Save payment methods](/api/rest/integration/orders-api/api-use-cases/save-payment-methods/)               | Buyers can save a payment method, such as a card or PayPal wallet, and choose to use this payment source for future orders.                             |
| [Alternative payment methods](/api/rest/integration/orders-api/api-use-cases/alternative-payment-methods/) | The Orders v2 API supports payment methods other than PayPal Checkout and Expanded Checkout.                                                            |