CardSpring operates as a technology company providing an API platform that allows developers to integrate digital applications such as coupons, loyalty programs, and digital receipts with payment cards. The company serves developers, merchants, and advertisers by enabling them to create card-linked promotions and applications that work seamlessly with existing payment terminals. This eliminates the need for additional hardware installations or employee training, making it a cost-effective solution for businesses.

CardSpring's business model revolves around offering a secure, easy-to-use REST API that developers can use to build card-linked applications. The platform manages user payment data securely and complies with PCI requirements, ensuring data protection and privacy. The company generates revenue by charging fees for API usage and possibly through partnerships with merchants and advertisers who benefit from the card-linked promotions.

Operating in the fintech and digital marketing sectors, CardSpring addresses the needs of businesses looking to enhance customer engagement and streamline payment processes. By linking digital ads to real-world purchases, the platform provides valuable insights and analytics to its clients, helping them optimize their marketing strategies.

Keywords: API platform, card-linked apps, digital coupons, loyalty programs, payment cards, existing terminals, secure data management, PCI compliance, fintech, digital marketing.