id you pass as gameID to Get orderbook. This is the lightweight list endpoint — it returns game identity and matchup metadata only, without orderbook depth.
Use List events first if you want to narrow to a specific event name.
Request
POST
https://api.4cx.io/exchange/v2/getGames POSTAuthorization, Content-Type: application/json
league is required. sport is optional and further narrows the result.
data.games[].id and pass it as gameID to Get orderbook → By single game id.