It looks like https://cryptorush.in is out of Beta...

Trading KOI not COYE. https://cryptorush.in/index.php?p=trading&m=KOI&b=BTC

Also:

KOI/DOGE: https://cryptorush.in/index.php?p=trading&m=KOI&b=DOGE

KOI/LTC: https://cryptorush.in/index.php?p=trading&m=KOI&b=LTC