Via the Livescore endpoint, you can obtain live data of Games of the current day and live data for In-Play Games. The Livescore endpoint provides real-time data about Game information and Events like Goals, Cards, Substitutions, Line-ups, In-Play Statistics etc.
For many customers, Livescores is the main endpoint for their app/website. Be aware your access is limited to games of the Leagues that are available in the plan you are subscribed to.
Responses of the Livescore endpoint are highly customizable because there are many Includes available to extend the response. There are always two teams involved in a Livescore Game. Requests often start with the Includes localTeam and visitorTeam. Events, Stats, Lineups, Comments, Trends etc. are often added to extend the response.