Freesound vs Genrenator

Freesound's APIv2 lets apps browse, search, and retrieve Freesound's library of user-uploaded sound clips — with content-based similarity search and audio-analysis features on top of plain metadata search — plus upload, comment, rate, and bookmark actions for authenticated users. It supports both token-based key auth and full OAuth2, defaults to JSON responses (XML and YAML are available but untested by the maintainers), and access is free for registered developers. The older APIv1 has reached end-of-life and is no longer available.

Genrenator is a novelty API that invents random music genre names and short genre "stories" by recombining fragments — instruments, beats, adjectives, prefixes, suffixes, and regions — drawn from Spotify's Every Noise At Once genre database. It's a keyless WordPress REST endpoint (GET /wp-json/genrenator/v1/genre/ or /story/, optionally with a count suffix like /story/25/ for multiple results) that returns plain JSON strings, free to use with no documented rate limit.