There are so many cryptocurrency exchange sites (binance, bittrex, kucoin, poloniex, etc...) these days. Is there a software or service that taps into the API call of all these exchanges to be able to manage trades, deposits, and withdraws from one interface?
check coinpayments API. supports trade(via shapeshift) deposits & withdraws with multiple currencies.
There are some apps for example Tab Trader which allow you to trade on multiple exchanges by using their API keys. On computers, some trading bot applications be able to do should do similar things. However there's already a risk associated with using API keys and you should evaluate whether you want to use such software after all.