Abstract: Point-of-sale transaction processing is disclosed. In one innovative aspect, there is a point-of-sale system. The point-of-sale system includes a device manager configured to receive a token as input. The token may be associated with a mobile device. The token may also be associated with a particular provider (e.g., store, bank, loyalty program). The system includes a payment information engine configured to map the token to payment information such as a credit card track based at least in part on the received token. In the system, the device manager is further configured to transmit the payment information to a point-of-sale application.