Hello, as I am playing around with the Echonest/Spotify API I am wondering if there is any way to sell a service based on the API (to cover my server expenses and to avoid ugly ads).
I like to create a "search" interface where user are able to upload a "pattern" (incl. different variables like BPM etc) and search for tracks within this pattern.
Anyway: I saw it is not allowed to "sell a feed" but how about a "search interface" (or even a app with a search interface): Is is ok let the user pay to use it?
I am thinking about donation too.
Thanks