Lichess
Open chess data — players, games and puzzles
Lichess exposes profiles, ratings, game exports (PGN/JSON) and tournaments through a public API. Many read endpoints need no token (one raises rate limits and unlocks account routes). The go-to open alternative to Chess.com for chess tooling.
GET https://lichess.org/api/user/thibault
{
"id": "thibault",
"username": "thibault",
"perfs": {
"ultraBullet": {
"games": 3,
"rating": 1688,
"rd": 359,
"prog": 0,
"prov": true
},
"bullet": {
"games": 7482,
"rating": 1785,
"rd": 92,
"prog": 12
},
"blitz": {
"games": 11625,
"rating": 1760,
"rd": 51,
"prog": -31
},
"rapid": {
"games": 912,
"rating": 1814,
"rd": 58,
"prog": -74
},
"classical": {
"games": 25,
"rating": 1858,
"rd": 244,
"prog": 48,
"prov": true
},
"correspondence": {
"games": 377,
"rating": 1942,
"rd": 169,
"prog": -12,
"prov": true
},
"chess960": {
"games": 348,
"rating": 1551,
"rd": 267,
"prog": 61,
"prov": true
},
"kingOfTheHill": {
"games": 94,
"rating": 1744,
"rd": 287,
"prog": 14,
"prov": true
}
},
"flair": "nature.seedling",
"patron": true,
"patronColor": 10,
"verified": true,
"createdAt": 1290415680000
}curl "https://lichess.org/api/user/thibault"const res = await fetch("https://lichess.org/api/user/thibault");
const data = await res.json();
console.log(data);import requests
res = requests.get("https://lichess.org/api/user/thibault")
print(res.json())/user/thibaultPROBEDOpen chess data — players, games and puzzles
/userSingle user profile.
/user/1User details by ID (example: 1).
/user?limit=10Single user profile.
/user/search?q=testSearch by query parameters.
/api/assets/index-7o4Qoux5.jsIndex 7o4Qoux5 Js — documented GET route.
We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.
Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.
Lichess: common questions
Is Lichess free to use?
Yes — Lichess is a free games API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.
Does Lichess need an API key?
No — Lichess needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).
Can I call Lichess from the browser?
Yes — Lichess returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.
Is Lichess up right now?
As of our last scheduled check, Lichess is healthy with 99.02% uptime over 90 days and a 436 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.