Riot Games Champion Mastery

The Riot Games Champion Mastery API is access to game data that allows you to; Get all champion mastery entries sorted by number of champion points descending, Get a champion mastery by player ID and champion ID and Get a player's total champion mastery score. This API requires an API Key and token for authentication and authorization. Riot Games provides the game developer community with access to game data programmatically and builds tools to develop, publish, and support player-focused games globally.