Request: Audio Features API Access for Academic Research (403 Error)

[sarabehnamian]

Request: Audio Features API Access for Academic Research (403 Error)
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Hello,

I am a researcher at the University of Copenhagen conducting academic research on music trends from 2019-2021. I have created an app (Music Research, Client ID: 3368a9aa03ef4a1a8088aba6bb0ff7bc) using the Web API.

Issue:
- Successfully authenticated with SpotifyOAuth
- Can retrieve track metadata (track name, artist, album, popularity)
- Receiving 403 Forbidden errors when attempting to access Audio Features API endpoint
- Error: "HTTP Error for GET to https://api.spotify.com/v1/audio-features/?ids=..."

I need access to audio features (danceability, energy, valence, tempo, etc.) for approximately 1,400 tracks for my research.

Questions:
1. How can I request extended quota/permissions to access audio features?
2. Is there a special approval process for academic research projects?
3. Are there restrictions on Development Mode apps accessing audio features?

Thank you for your assistance!

Plan: Free
Country: Sweden
Device: Windows PC
Operating System: Windows 11