lichess.daily_puzzle

stable Standard

Lichess daily puzzle.

GET /v1/lichess/daily_puzzle

What you get#

One Lichess 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#

This endpoint takes no parameters.

Request#

curl "https://api.onekey.dev/v1/lichess/daily_puzzle" \
  -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 Lichess response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": {
    "entity": {
      "id": "Woc1R",
      "stats": {
        "rating": 1984
      }
    },
    "ext": {
      "plays": 73818,
      "perf": "Rapid"
    },
    "content": {
      "id": "vu9SEBG6",
      "text": "d4 d5 c4 dxc4 Qa4+ Bd7 Qxc4 Nf6 Nf3 e6 Bg5 h6 Bf4 Bd6 Bxd6 cxd6 e3 d5 Qc2 O-O Bd3 Nc6 Nc3 Nb4 Qd2 Nh5 a3 Nxd3+ Qxd3 f5 O-O Qe8 Ne5 Rd8 Qc2 f4 e4 dxe4 Nxe4 Bb5 Rfd1 Rc8 Qb3 Nf6 Nc5 Nd5 a4 Bc6 Nxb7"
    }
  },
  "metadata": {
    "platform": "lichess",
    "endpoint": "daily_puzzle",
    "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
`puzzle.id`	`entity.id`	-
`puzzle.rating`	`entity.stats.rating`	`toNumber`
`puzzle.plays`	`ext.plays`	`toNumber`
`game.id`	`content.id`	-
`game.pgn`	`content.text`	-
`game.perf.name`	`ext.perf`	-

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 2 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).