# RFI APIs: Sandbox Testing
source: https://developer.mastercard.com/cross-border-services/documentation/testing/rfi-apis/index.md

Use this section to test the RFI APIs in the Sandbox environment.

Select an API below for sandbox test cases, sample requests, and sample responses.

| # |          API          |                                What you can test                                |                                                       Sandbox Testing                                                        |
|---|-----------------------|---------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|
| 1 | Upload Document API   | Upload a document for a request for information and confirm the API response.   | [View](https://developer.mastercard.com/cross-border-services/documentation/testing/rfi-apis/upload-document-api/index.md)   |
| 2 | Download Document API | Download a document linked to a request for information and check the response. | [View](https://developer.mastercard.com/cross-border-services/documentation/testing/rfi-apis/download-document-api/index.md) |
| 3 | Retrieve Request API  | Retrieve the details of an open request for information.                        | [View](https://developer.mastercard.com/cross-border-services/documentation/testing/rfi-apis/retrieve-request-api/index.md)  |
| 4 | Update Request API    | Send a response to an open request for information and confirm the update.      | [View](https://developer.mastercard.com/cross-border-services/documentation/testing/rfi-apis/update-request-api/index.md)    |
| 5 | RFI Notification      | Receive simulated notifications when new information is requested.              | [View](https://developer.mastercard.com/cross-border-services/documentation/testing/rfi-apis/notification/index.md)          |