openapi: 3.1.0 info: title: Chess.com Published Data Clubs Leaderboards API description: 'Public, read-only REST API exposing Chess.com data: player profiles and stats, monthly game archives (JSON and PGN), clubs and members, daily and live team matches, Swiss and round-robin tournaments, titled-player lists, country rosters, the daily puzzle, the streamer list, and live leaderboards. The API is unauthenticated; rate limiting applies to parallel requests (429 Too Many Requests). Responses use JSON-LD with ETag, Last-Modified, gzip, and JSONP support. Most endpoints refresh at most every 12-24 hours. Clients are encouraged to send a recognizable User-Agent including a contact email or URL. ' version: '2026-05-25' contact: name: Chess.com Support url: https://support.chess.com x-logo: url: https://www.chess.com/favicon.ico servers: - url: https://api.chess.com/pub description: Chess.com Published Data API tags: - name: Leaderboards description: Live leaderboards across time controls and variants paths: /leaderboards: get: summary: Get Leaderboards operationId: getLeaderboards tags: - Leaderboards responses: '200': description: Top 50 players across all formats content: application/json: schema: type: object