If you wanted to get started, I'd recommend googling around about how to call an api. With Spotify (and most other public APIs) this is entirely free provided you don't abuse the system, or build a commercial tool using them. Some APIs cost money, which is typically charged each time you call the API. The way you ask is typically by writing some code into a script and running the script, and the way they reply to your request is typically in a format called json, which is like a more structured form of text.
Further to what u/Bone_Man said, in this context the Spotify Web API basically allows you to ask Spotify specific questions, to which you'll get answers.
0 kommentar(er)
