CryptoArbitrage.gs

function BittrexARB(pair) {
  pair = (typeof pair !== 'undefined') ?  pair : "BTC-LTC";
  
  var doc = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = doc.getSheets()[0];
  
  var response = UrlFetchApp.fetch('https://bittrex.com/api/v1.1/public/getorderbook?market='+ pair +'&type=both');
  var data = JSON.parse(response.getContentText());
  
  var row = [];
  
  row.push(data.result.buy[0].Rate, data.result.buy[0].Quantity, data.result.sell[0].Rate, data.result.sell[0].Quantity);
  
  return row;
}

function BinanceARB(pair) {
  pair = (typeof pair !== 'undefined') ?  pair : "BTC-LTC";
  
  var sym = pair.toString().split("-");
  var market = sym[1]+sym[0];
  
  var doc = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = doc.getSheets()[0];
  
  var response = UrlFetchApp.fetch('https://api.binance.com/api/v1/ticker/bookTicker?symbol='+ market);
  var data = JSON.parse(response.getContentText());
  
  var row = [];
  
  row.push(Number(data.bidPrice), Number(data.bidQty), Number(data.askPrice), Number(data.askQty));
  
  return row;
}

function KucoinARB(pair) {
  pair = (typeof pair !== 'undefined') ?  pair : "BTC-LTC";
  
  var sym = pair.toString().split("-");
  var market = sym[1]+'-'+sym[0];
  
  var doc = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = doc.getSheets()[0];
  
  var response = UrlFetchApp.fetch('https://api.kucoin.com/v1/open/orders?symbol='+ market +'&limit=1&group=1');
  var data = JSON.parse(response.getContentText());
  
  var row = [];
  
  row.push(data.data.SELL[0][0], data.data.SELL[0][1], data.data.BUY[0][0], data.data.BUY[0][1]);
  
  return row;
}