Information processing device, information processing method, program and storage medium

The present invention makes it possible to appropriately manage application provider and application user history pertaining to a service involving API use. This information processing device issues a service code in response to an API use request transmitted by an application provider device and pertaining to a service using an application program using an API, and registers the service identification information and use API information in association with the service code. In addition, unapproved license information for each application user is issued according to the user-identifying information from the application provider. This license information is registered as license approval information upon approval from the application user side. When executing the service, API use is permitted upon authentication using this type of registration information. In this case, API use history information for the application provider and user is produced as a result of it being possible to identify the application pro