calculate the amount of a specific token currently deposited in a specific exchange

I want to calculate the amount of a specific token currently deposited in a specific exchange. For example, the exchange called gateio has a wallet address @@@@@@@@@@, and I want to calculate the total circulation of stik tokens (@@@@@@@@@@) deposited in the gateio exchange. I wonder if it is possible through API, or if I don't have to use API. Please reply.