Patent attributes
This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, to coordinate data exchange among a plurality of devices. In one aspect of the disclosure, a method includes receiving, from a client server, an indicator associated with authorization of a service, and receiving, from a service server, first verification data and a request. The first verification data is associated with performance of the service and the request includes a request for payment for performance of the service. The method further includes sending, to an exchange server, second verification data. The second verification data is based on the first verification data. The method also includes receiving, from the exchange server in response to receipt of the second verification data and the request by the exchange server, a reply. Other aspects and features are also claimed and described.