The base currency is EOS; the counter currency is USD. In the EOS/USD pair a traditional (fiat) currency – the American dollar – is quoted against a cryptocurrency – EOS. Unlike USD EOS is a decentralised currency. Like other cryptocurrencies it works using a blockchain-based operating system which is able to process over 100000 transactions per second. The EOS platform was established by a company called block.one. Сatch up on the recent EOS/USD rate by following the EOS/USD charts at Capital.com.