Competition Fixtures (League Details)
This API takes in a CompetitionId (1, 8, etc) or a Competition Key (e,g, EPL, MLS, COPA, etc) returns all current fixtures for a given competition, including: competition info, current season, rounds (w/ current round), teams, squads (players), and schedules/scores.
On a related note, we published our competition / league data on our website, so if you need to look up an ID or Key, then you can do so easily without fumbling through the API.
Sample API Calls
Box Scores by Date by Competition
Same as Box Scores Delta, but it will filter and only include games for a give competition.
Box Scores Delta by Date by Competition
Same as Box Scores Delta by Date, but it will filter and only include games for a give competition.