itunes.lookup_album_tracks

stable Advanced

Tracks of an iTunes album (first row is the album itself).

GET /v1/itunes/lookup_album_tracks

What you get#

A list of Itunes results in Onekey's unified shape, in data (an array). An empty array is a normal, successful answer and is charged like any other; a source that reports "nothing found" as an error returns a free 404 not_found instead.

What it costs#

Advanced · 5 credits for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`id`	string	yes	(required)	iTunes/Apple id	max 12 chars; must match `[0-9]{1,12}`; trimmed
`country`	string	no	`us`	2-letter store country, e.g. us	max 2 chars; must match `[a-z]{2}`; trimmed, lowercased

Request#

curl "https://api.onekey.dev/v1/itunes/lookup_album_tracks?id=1097861387" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Itunes response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": [
    {
      "content": {
        "id": null,
        "title": null,
        "category": "Alternative",
        "url": null,
        "createdAt": "1997-05-21T07:00:00Z"
      },
      "author": {
        "displayName": "Radiohead"
      },
      "ext": {
        "album": "OK Computer",
        "durationMs": null
      },
      "media": {
        "thumbnailUrl": "https://is1-ssl.mzstatic.com/image/thumb/Music116/v4/07/60/ba/0760ba0f-148c-b18f-d0ff-169ee96f3af5/634904078164.png/100x100bb.jpg",
        "previewUrl": null
      }
    },
    {
      "content": {
        "id": "1097861769",
        "title": "Airbag",
        "category": "Alternative",
        "url": "https://music.apple.com/us/album/airbag/1097861387?i=1097861769&uo=4",
        "createdAt": "1997-05-21T07:00:00Z"
      },
      "author": {
        "displayName": "Radiohead"
      },
      "ext": {
        "album": "OK Computer",
        "durationMs": 287880
      },
      "media": {
        "thumbnailUrl": "https://is1-ssl.mzstatic.com/image/thumb/Music116/v4/07/60/ba/0760ba0f-148c-b18f-d0ff-169ee96f3af5/634904078164.png/100x100bb.jpg",
        "previewUrl": "https://audio-ssl.itunes.apple.com/itunes-assets/AudioPreview221/v4/f1/ed/05/f1ed0562-876c-a84a-c4ff-70613135b818/mzaf_18061085714629562351.plus.aac.p.m4a"
      }
    }
  ],
  "metadata": {
    "platform": "itunes",
    "endpoint": "lookup_album_tracks",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 5,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`trackId`	`content.id`	`toString`
`trackName`	`content.title`	-
`artistName`	`author.displayName`	-
`collectionName`	`ext.album`	-
`primaryGenreName`	`content.category`	-
`trackViewUrl`	`content.url`	`safeUrl`
`artworkUrl100`	`media.thumbnailUrl`	`safeUrl`
`previewUrl`	`media.previewUrl`	`safeUrl`
`trackTimeMillis`	`ext.durationMs`	`toNumber`
`releaseDate`	`content.createdAt`	`toIsoDate`

Caching and freshness#

Fresh for about 1 hour. Repeat calls in that window are served from cache and are free.
Between 1 hour and 1 day the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 3 days more (marked stale).
A "not found" is remembered for 5 minutes and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	Unknown endpoint path.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: stable (verified against the live source).