Found 2 биржи where WorldCoin is traded for USDT. According to the data on 28 September the most optimal price to exchange WDC for USDT is ₮0 for 1 WorldCoin. This rate is fixed at at the maximum trading volume of the pair WDC/USDT - 41.3 USDT.
The maximum daily trading volume is observed in the WDC/USDT trading pair at and reaches ₮ 41.28 (0.0019% of the exchange's total trading volumes) at the price ₮ 0 per 1 WDC.
The minimum price to buy WDC for USDT is 0 - on the exchange .