Free

Country
Japan

Device
MacBook Air M1

Operating System
macOS Sequoia 15.1.1

My Question or Issue
I am experiencing issues with Spotify's Web API when trying to retrieve data for certain playlists. Specifically, requests to the following API endpoint return a 404 Client Error: Not Found for url: error:

• API URL: https://api.spotify.com/v1/playlists/37i9dQZF1DXc57cuGAMEkA?additional_types=track
• Web URL: https://open.spotify.com/playlist/37i9dQZF1DXc57cuGAMEkA
• Playlist Title: New Music Friday Japan

Additionally, I have encountered the same issue with other Spotify-created playlists, such as global charts.

What I Tried

1. I suspected an authorization issue, so I tested the same API URL via the official Spotify API reference page (https://developer.spotify.com/documentation/web-api/reference/get-playlists-tracks). However, the 404 error persisted.
2. I confirmed that my script works for other playlists by testing a different playlist (e.g., https://open.spotify.com/playlist/5dioOAPReQCRR4XCx2DLPQ?trackId=5H6H2pYhX8tYGQ2DG4QeB0), which returned the expected data.

It seems that Spotify-created playlists, when accessed via the Web API (https://api.spotify.com/v1/playlists/), are consistently returning 404 errors.

Is there something I might be overlooking on my end, or has there been a change to the accessibility of Spotify-created playlists via the API?

I would greatly appreciate your advice or assistance in resolving this issue.