I did find this too, it's the same library used by most DJ software: https://www.sonicapi.com/docs/api/analyze-tempo https://www.sonicapi.com/docs/api/analyze-t

I did find this too, it's the same library used by most DJ software: https://www.sonicapi.com/docs/api/analyze-tempo https://www.sonicapi.com/docs/api/analyze-tempo Works pretty well but requires to upload a file, then process it to get the BPM. So you would need smaller audio samples as the soundcloud stream is too big and takes ages.