Returns all active leagues with event counts, grouped by sport.
Each league includes a slug that can be used as a stable identifier for filtering via /v1/events?league={slug}.
[!NOTE] Active Discovery: This endpoint returns only the leagues that currently have active (live or upcoming) events. While the platform supports thousands of total leagues, the real-time response is scoped to current market activity to ensure all returned data is immediately actionable.
Documentation Index
Fetch the complete documentation index at: https://docs.fieldfunded.com/llms.txt
Use this file to discover all available pages before exploring further.