generated: '2026-07-18' method: searched source: https://docs.crunchdao.com/technical/tournament-api authentication: styles: - {type: api-key, header: 'Authorization: API-Key ', query: '?apiKey='} - {type: access-token, header: 'Authorization: Bearer ', query: '?accessToken='} key_management: https://hub.crunchdao.com/account/api ref: authentication/crunchdao-authentication.yml idempotency: supported: false note: No Idempotency-Key header or idempotency contract is documented or present in the OpenAPI. pagination: style: page-number params: [page, size, sort] note: Spring-style page/size/sort query parameters on list endpoints (e.g. list competitions, leaderboards, participants). No cursor pagination. versioning: style: uri-path ref: lifecycle/crunchdao-lifecycle.yml error_envelope: format: crunchdao-error-envelope shape: '{ code: UPPER_SNAKE_CASE, message: string, ...context }' ref: errors/crunchdao-problem-types.yml rate_limiting: signaled: false note: No rate-limit response headers found in the OpenAPI spec.