# Payment API Common Content 2
source: https://developer.mastercard.com/cross-border-services/documentation/api-ref/common2-payment-api/index.md

Note: In order to provide ease of processing and to avoid any potential keying errors, when a Quote is utilized and the Quote Proposal ID information is provided for payment initiation, the quote transaction details (sending/receiving accounts, amounts, currencies, etc.) are used to fill the payment request.

* **Formats supported** : XML/ JSON   
* **HTTP Version**: 1.0/ 1.1
* **Required HTTP header parameters** :   
  content-type : Format of the inbound content being submitted. example: application/json   
  content-length: Length of the inbound content body in octets.   
  Accept: Format of the expected response must be provided in this header field. Example - application/json