As of today, the last reported OP price is $0.144979. Onion Protocol's last market cap was unknown. 24 hour OP volume is unknown. It has a market cap rank of unknown. Onion Protocol is traded on exchanges. Onion Protocol had an all-time high of $0.517674 about 2 years ago. Over the last day, Onion Protocol has had 0% transparent volume and has been trading on 1 active markets with its highest volume trading pairs being .