itunes.top_paid_apps

stable Advanced

App Store top paid apps chart.

GET /v1/itunes/top_paid_apps

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
`country`	string	no	`us`	2-letter store country, e.g. us	max 2 chars; must match `[a-z]{2}`; trimmed, lowercased
`limit`	string	no	`10`	Chart size (10, 25, 50, 100)	max 3 chars; must match `(?:10\|25\|50\|100)`; trimmed

Request#

curl "https://api.onekey.dev/v1/itunes/top_paid_apps" \
  -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": "932747118",
        "title": "Shadowrocket",
        "url": "https://apps.apple.com/us/app/shadowrocket/id932747118",
        "category": null,
        "createdAt": "2015-04-14T00:00:00Z"
      },
      "author": {
        "displayName": "Shadow Launch Technology Limited"
      },
      "media": {
        "thumbnailUrl": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/64/24/2d/64242de2-a763-914f-c686-8777445b83a3/AppIcon-0-0-1x_U007epad-0-1-0-sRGB-85-220.png/100x100bb.png"
      }
    },
    {
      "content": {
        "id": "294934058",
        "title": "HotSchedules",
        "url": "https://apps.apple.com/us/app/hotschedules/id294934058",
        "category": null,
        "createdAt": "2008-10-31T00:00:00Z"
      },
      "author": {
        "displayName": "HotSchedules"
      },
      "media": {
        "thumbnailUrl": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/78/1e/a5/781ea5cf-ded8-9136-bcc6-22ca06b34243/AppIcon-0-1x_U007epad-0-1-0-85-220-0.png/100x100bb.png"
      }
    }
  ],
  "metadata": {
    "platform": "itunes",
    "endpoint": "top_paid_apps",
    "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
`id`	`content.id`	-
`name`	`content.title`	-
`artistName`	`author.displayName`	-
`url`	`content.url`	`safeUrl`
`artworkUrl100`	`media.thumbnailUrl`	`safeUrl`
`genres.0.name`	`content.category`	-
`releaseDate`	`content.createdAt`	`toIsoDate`

Caching and freshness#

Fresh for about 30 seconds. Repeat calls in that window are served from cache and are free.
Between 30 seconds and 5 minutes 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 10 minutes more (marked stale).
A "not found" is remembered for 1 minute 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).