Coupon and reward APIs provide developers with the ability to integrate affiliate coupon and loyalty program data into their applications, offering access to a wide variety of deals and discounts from various sources. RapidAPI offers a marketplace where developers can find numerous such APIs, including Free Coupon Codes API by CashNJoy, which caters to the Indian market, and Deals and Coupons API, which offers deals from major merchants in India. The DayWatch API provides real-time business reporting and deal insights across the US, Latin America, and Southeast Asia, while Blip A Deal aggregates offers from multiple countries, making it particularly useful for travelers. Other noteworthy APIs include 8coupons, which delivers local daily deals, and Tango Card, which provides a rewards program service. There are also APIs like LinkMyDeals, Groupon, and RetailMeNot that offer a range of deals, coupons, and rewards globally, catering to diverse consumer needs across different regions. Each API has distinct endpoints, pricing structures, and regional focuses, making them suitable for various applications in the e-commerce and digital marketing sectors.