To get all the leagues of the sport, you will need to list all categories first and then list all tournaments inside the category.
The category represents the country/tour/game of the tournaments. To get all categories, you can use the following endpoint: “/api/tournament/categories” for football or “/api/{sport}/tournament/categories” for other sports. With the response you can get all the leagues with the following endpoint: “/api/tournament/all/category/{category_id}” for football or “/api/{sport}/tournament/all/category/{category_id}" for other sports. Additionally, there are the category schedules that shows the events played in certain day for that category alone: “/api/category/{category_id}/events/{day}/{month}/{year}” for football or “/api/{sport}/category/{category_id}/events/{day}/{month}/{year}" for other sports, with the day being integer.