# Retrieve Request API Common Content 2
source: https://developer.mastercard.com/cross-border-services/documentation/api-ref/rfi-apis/common2-retrieve-request-api/index.md

* **Formats supported** : 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