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APIs by Voltenworks

Production-ready APIs for developers. Usage-based pricing, generous free tiers, and docs that don't suck.

MeloData

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Music Audio Features API

Free tier: 1,000 lookups/mo

Get BPM, key, energy, danceability, valence, and more for any track by ISRC. Built as a replacement for Spotify's deprecated audio features endpoints.

Audio features (BPM, key, energy, valence)Track metadata & searchBatch lookups (up to 50 tracks)Similarity-based recommendations3M+ pre-analyzed tracks
Get StartedDocumentationRapidAPI

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