The text discusses the process of creating a card linking program using Fidel APIs, highlighting the evolution of real-time payment tracking. It emphasizes the benefits of using transaction APIs, which allow every transaction on enrolled cards to be logged in real-time, providing program owners with valuable insights into customer shopping behavior. The article guides users through setting up a loyalty card scheme, starting from creating an account and obtaining an API key to creating a program, brand, and locations using the Fidel API. It explains the ease of integrating the API with cURL and includes humorous references to Star Wars throughout. Additionally, the text covers the enrollment of customer cards using Fidel's PCI-compliant Web SDK and concludes by encouraging users to test the API and explore the potential of creating their own card linking programs.