API Reference - HuddleUp Sports

The endpoint pages in the sidebar are generated from Whistle’s OpenAPI 3.1 specification and document the complete v1 surface: 21 operations — the self-describing index plus 20 resource operations across leagues, games, officials, assignments, payments, and webhooks.

Raw spec: /docs/api-reference/openapi.json — pin and diff it in CI to detect surface changes.
Base URL: https://whistle.huddleup-sports.com/api/v1
Auth: Authorization: Bearer whk_… on every request — see Authentication.
Envelope: success {"data": …}, error {"error": "<code>"} — see Errors & agent safety.

The spec also declares all 12 webhook event payloads under its webhooks section — the narrative guide is on the Webhooks page.

Last modified on July 10, 2026

Versioning & Changelog API index