Application service provider featuring application programming interface (API) software; Application service provider featuring application programming interface (API) software for management of blockchain games and decentralized economies; Authentication of data in the field of decentralized economy management using blockchain technology; Platform as a service (PAAS) featuring computer software platforms for the management of blockchain games and decentralized economies; Providing an online non-downloadable Internet-based system application featuring technology enabling users to manage blockchain games and decentralized economies; Providing temporary use of a non-downloadable web application for the management of blockchain games and decentralized economies; Providing temporary use of non-downloadable web-based decentralized applications (DApps) for the management of blockchain games and decentralized economies; Providing temporary use of on-line non-downloadable software and applications using artificial intelligence for controlling characters in blockchain games and decentralized economies; Providing temporary use of on-line non-downloadable software for accessing, reading, and tracking information in the field of gaming on a blockchain; Providing temporary use of online non-downloadable middleware for providing an interface between gaming systems (game clients and game servers) and blockchain-based game mechanics; Software as a service (SAAS) services featuring software using artificial intelligence for the management of blockchain games and decentralized economies; Software as a service (SAAS) services, namely, hosting software for use by others for use in managing blockchain games and decentralized economies; User authentication services using blockchain technology for decentralized economies