Abstract: The present invention is to ensure information safety of a user of service using API. An information processing device issues a service code in response to an API use request. The API use request relates to service using an application program that uses API and is transmitted from an application provider device. The information processing device makes service identification information and use API information correspond to the service code and registers the service identification information, the use API information, and the service code. According to user-specific information from the application provider, unapproved license information is issued for each application user. Approval of this license information by the application user side registers the license approval information. At service execution, authentication is performed based on the service code and the license information. When the authentication is passed, API use is permitted.

Abstract: The present invention is to ensure information safety of a user of service using API. An information processing device issues a service code in response to an API use request. The API use request relates to service using an application program that uses API and is transmitted from an application provider device. The information processing device makes service identification information and use API information correspond to the service code and registers the service identification information, the use API information, and the service code. According to user-specific information from the application provider, unapproved license information is issued for each application user. Approval of this license information by the application user side registers the license approval information. At service execution, authentication is performed based on the service code and the license information. When the authentication is passed, API use is permitted.

Abstract: To manage results of an application provider and user related to service involving API use, an information processing device issues a service code in response to an API use request The information processing device makes service identification information and use API information correspond to the service code and registers the service identification information, use API information, and service code. According to user-specific information from the application provider, unapproved license information is issued for each application user. Approval of this license information by the application user registers the license approval information. At service execution, authentication is performed using this registration information and API use is permitted. The application provider can be identified by service code and the application user can be identified by license information. Accordingly, result information of API use of the respective application provider and application user is generated.

Abstract: To easily set an appropriate supply method for each item, an electronic commerce system (1) includes a list database (13) that stores a supply method list (referred to hereinafter as “list”) containing one or more supply method information about an item available in a virtual shop, a screen providing unit (16) that provides an input screen to associate item information with the list to a virtual shop terminal Ts, a registration unit (17) that stores correspondence information indicating a correspondence between the item information and the list input in the virtual shop terminal Ts into an item supply method database (15), and an item information extraction unit (18) that, when a specific item is selected in a user terminal Tu, reads the list corresponding to the item from the item supply method database (15) and transmits the supply method information contained in the list to the user terminal Tu.