1. In association with an API marketplace, wherein one or more API providers can each supply an API of a specified type, and each API provider has a set of Terms of Service (ToS) for its API of the specified type, a computer implemented method comprising the steps of: responsive to an API consumer having a need for an API of the specified type, obtaining the ToS of at least a given one of the API providers; implementing an automated process to generate a set of data elements from selected content of the ToS of the given API provider; and selectively using the set of data elements with a specified data structure to determine differences between the ToS of the given API provider, and a ToS of the API consumer.