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GET
List leagues

Authorizations

Authorization
string
header
required

Partner API key: Authorization: Bearer whk_…. Keys are issued by the Whistle team (email tommy@huddleup-sports.com), shown once at issuance, and bound to your source namespace — they access only your leagues (plus explicit grants) and your webhook endpoints. Any auth failure returns 401 {"error":"unauthorized"}; the API never returns 403 — out-of-scope resources answer 404 exactly like nonexistent ones.

Response

Array of leagues with counts

data
object[]
Last modified on July 13, 2026