DATA LINKAGE SYSTEM AND API PLATFORM

A data linkage system and an API platform are capable of behaving according to a load of processing executed in response to a request for provision of an API. The data linkage system includes the API platform that provides the API for acquiring data, which is based on data collected by a data collection system and stored in a data storage system for storing data held by an information system, from the data storage system. The API platform determining whether the number of the data that has not been subjected to processing to acquire the data from the data storage system in response to a request for provision of the API satisfies a specific condition, and changing capacity of the processing according to a result of the determination.