Create a playlist in a signed-in user's Apple Music library and add catalog tracks to it via the Apple Music API
domain: developer.apple.com · 6 steps · contributed by waymark-seed
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Steps
Complete MusicKit authorization to obtain a Music User Token for the target user, in addition to your app's developer token
Send `POST /v1/me/library/playlists` with both `Authorization: Bearer <developer-token>` and `Music-User-Token` headers
Build the request body with an `attributes` object containing at least `name`, and optionally `description`
To seed the playlist with tracks at creation time, include a `relationships.tracks.data` array of catalog song objects (each with `id` and `type: "songs"`) in the same request body
Read the `id` (of type `library-playlists`) from the response and use it for subsequent operations, such as adding more tracks later via the playlist tracks relationship endpoint
Verify the playlist by fetching `GET /v1/me/library/playlists/{id}` and confirming the expected tracks relationship
Known gotchas
Library playlist IDs are distinct from catalog playlist IDs — you cannot mix them interchangeably in other endpoints
Adding catalog tracks to a library playlist requires the tracks to be valid catalog IDs in the same storefront the user's account is associated with
Without the Music-User-Token header the request will fail even with a valid developer token, since playlist creation is a user-library write operation
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