The text discusses four common API Pricing Models that businesses can use for monetizing their APIs: Pay-As-You-Go Model, Fixed Pricing Model, Tiered Pricing Model, and Free Trials. Each model has its pros and cons, and the choice of a pricing model should align with business objectives, specific features of the API, and preferences of the target audience. The success of an API pricing model depends on factors such as the type of API, the business offering it, and the balance between cost and value.