wikipedia.featured

stable Standard

Wikipedia featured article of the day (today's featured article for a date).

GET /v1/wikipedia/featured

What you get#

One Wikipedia record in Onekey's unified shape, in data. If the record does not exist you get a 404 not_found and are not charged.

What it costs#

Standard · 1 credit 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
`year`	string	yes	(required)	4-digit year	max 4 chars; must match `[12][0-9]{3}`; trimmed
`month`	string	yes	(required)	2-digit month	max 2 chars; must match `(?:0[1-9]\|1[0-2])`; trimmed
`day`	string	yes	(required)	2-digit day	max 2 chars; must match `(?:0[1-9]\|[12][0-9]\|3[01])`; trimmed

Request#

curl "https://api.onekey.dev/v1/wikipedia/featured?year=2026&month=9&day=01" \
  -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 Wikipedia response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": {
    "content": {
      "id": "178253",
      "title": "Anfield",
      "text": "Anfield is a football stadium in the area of Anfield, Liverpool, England, which has been the home of Liverpool Football Club since their formation in 1892. The stadium has a seating capacity of 61,276, making it the fifth-largest football stadium in England. It was originally the home of Everton from 1884 to 1891 before they moved to Goodison Park after a dispute with Anfield owner and club president John Houlding, leading Houlding to form Liverpool F.C.",
      "url": "https://en.wikipedia.org/wiki/Anfield"
    },
    "media": {
      "thumbnailUrl": "https://thumb.wikimedia.org/wikipedia/commons/thumb/f/f8/Liverpool_anfield_road_stadium.jpg/960px-Liverpool_anfield_road_stadium.jpg?utm_source=en.wikipedia.org&utm_campaign=api&utm_content=thumbnail"
    },
    "ext": {
      "contentDescription": "Football stadium in Liverpool, England"
    }
  },
  "metadata": {
    "platform": "wikipedia",
    "endpoint": "featured",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 1,
    "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
`pageid`	`content.id`	`toString`
`title`	`content.title`	-
`extract`	`content.text`	-
`content_urls.desktop.page`	`content.url`	`safeUrl`
`thumbnail.source`	`media.thumbnailUrl`	`safeUrl`
`description`	`ext.contentDescription`	-

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`	That record does not exist. Free; do not retry.
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).