league_id, returns all historical seasons for that league, with has_results / has_standings flags indicating whether each season has results or standings data — these two flags let you pre-filter out empty seasons with no data when building a “season selector,” instead of the user discovering there’s no content only after selecting one.
This endpoint is also the authoritative source of valid season values for the season parameter used by endpoints like Team List, Standings, and Top Scorers.
Endpoint
Parameters
Response fields (data: array)
Request example
Response example
HTTP 200, excerpt