# Upload Document API Common Content 1
source: https://developer.mastercard.com/cross-border-services/documentation/api-ref/rfi-apis/common1-upload-document-api/index.md

## Environment Domains {#environment-domains}

* Sandbox/MTF
* Production

```Sandbox/MTF
https://sandbox.api.mastercard.com/send/partners/{partner_id}/crossborder/rfi/documents
```

```Production
https://api.mastercard.com/send/partners/{partner_id}/crossborder/rfi/documents
```

## API {#api}

[**++Open Specification++**](https://static.developer.mastercard.com/content/cross-border-services/swagger/RFI+Spec.yaml)

This API will be used by the Customer to upload a document to the MC system. Look at the RFI process description [How it works](https://developer.mastercard.com/cross-border-services/documentation/api-ref/rfi-apis/how-it-works/index.md) for details on how to use the Upload Document API for a cross border RFI solution.