The LUFS Analyzer API lets you analyze audio programmatically — detect BPM, musical key, tuning frequency (Hz), and loudness (LUFS) from audio files or URLs.
Base URL:
https://lufs.space:8445
Interactive docs (Swagger):
https://lufs.space:8445/api/docs
API access requires a Yearly subscription. Create keys in the bot: Settings → API → Create new key.