This disclosure relates generally to systems and methods for providing personalized financing information and, more particularly, systems and methods for providing personalized financing information via a dealership website using an API associated with a financial service provider. In one embodiment, a system includes memory hardware storing instructions that configure processing hardware to receive a loan request for a buyer via a real-time API that includes at least buyer identification and financial information and information associated at least one inventory item presented on a dealership website. The system may also determine financing information comprising prospective financing terms for the at least one item based on at least the loan request. The server may also provide, to the dealership server via the real-time API, the determined financing information for presentation on the dealership website, including prospective financing terms information corresponding to each of the at least one item.