User interface for a biller directory and payments engine

A computing device comprising a processing resource, a memory resource, and computer-executable instructions stored thereon and embodied in a biller exchange bill pay application, the instructions, when executed by the processing resource, causing the computing device to:

• receive, from a biller exchange computing system, a data set comprising a plurality of billers, each of the plurality of billers associated with a respective biller computing system and subscribed to a biller exchange structured to allow each of the plurality of billers to deliver and receive payment on customer bills via the biller exchange computing system;
• receive, from the biller exchange computing system, an authentication token generated by the biller exchange computing system, the authentication token structured to allow the biller exchange bill pay application to access aspects of at least one biller computing system, the authentication token comprising:
• authentication information comprising at least one of an account handle, a user name, an identification number, an account number with a system reference, an email address, a social media handle, a name, a telephone number, or a business address, and
• an access scope definition for the biller exchange bill pay application relative to the at least one biller computing system;
• query a computing device property of the computing device, the computing device property comprising at least one of a device type, an operating system, or a network connection type;
• render, responsive to the computing device property satisfying a predetermined criteria, an optimized version of the biller exchange bill pay application;
• generate and display a user-interactive page comprising at least one user-interactive control, the at least one user-interactive control comprising at least one property dynamically populated based on the data set comprising the plurality of billers;
• and
• responsive to detecting a user interaction with the at least one user-interactive control, perform, using the authentication token, computing operations specified at least in part by the at least one property of the at least one user-interactive control and allowable by the access scope definition,
• wherein the at least one user-interactive control comprises a user-interactive item structured to allow a user to enable use of the biller exchange bill pay application for a biller selected from the plurality of billers, the user-interactive item comprising the at least one property, and
• wherein rendering the optimized version of the biller exchange bill pay application comprises using compressed images for populating at least one portion of the user-interactive page.