Abstract: There is provided a listing support system or the like smoothly performing the guidance after the start of the listing procedure, particularly providing flexible listing support according to a wide variety of categories of listed items, and a method for providing an article commerce intermediation service on a server configured to be accessible from multiple user terminals, the method comprising: continuously recognizing an article in an image shot by a user terminal; extracting a category of the article by the recognition; and starting a listing procedure for treating the article as a listing item in commerce intermediation based on the extracted category.