Providing temporary use of non-downloadable software for securely storing, accessing, and managing payment data and account information for processing ecommerce transactions; Providing temporary use of non-downloadable software for managing and tracking electronic payment information; Providing temporary use of non-downloadable software to facilitate distribution, adoption, and acceptance of payment methods via a global network of consumers and merchants; Providing temporary use of non-downloadable software in the form of an application programming interface for integration of payment software into a global network of consumers and merchants