The invention relates to a system and a method for adapting a response provided by a first device. The system comprises the first device with means for receiving from at least one client device, as at least one second device, a data access request comprising at least one client identifier and a predetermined application programming interface or service provider interface associated with the first device. The first device comprises means for processing the data access request that provides the response to the data access request and means for sending the response. The system comprises adapting means for intercepting and adapting the response sent by the first device. The adapting means adapts the response while being specific to the client and provides an adapted response. And the system comprises adapted response sending means for sending at least a part of the adapted response to the second or a third device(s).