Spotify Api to arduino and rgb led strip

I ve seen some guides online which use the Spotify Api to turn their Rgb led strips into an audio visualizer but as a total beginner I dont know how to use the code,api nor anything so could you guys help me with that?

any links to whatever you've seen ?

I had a quick Look and found this

➜ so Spotify announced that starting November 27, 2024, new third-party Web API integrations—whether entirely new apps or existing ones still in development mode without an active extension request—lost access to several endpoints and features including Audio Analysis that the programs you might have been looking at probably depended upon.

You could still just add a microphone to your Arduino gig and do some audio processing on the samples you get to drive the leds. That would be Spotify independent.