The live Proton price today is $0.00402 USD with a 24-hour trading volume of 9,858,331 USD. We update our Proton to USD price in real-time. Proton is -6.64% in the last 24 hours. The current SoSoValue marketcap ranking is # 294, with a live market cap of $ 109,258,233 USD. It has a circulating supply of 27,178,664,941 XPR coins and a max supply of ∞ XPR coins.