BarterDex is a decentralised exchange which claims to be undergoing a maintenance but with what i discovered about the exchange, it seems like the exchange is no longer functional. BarterDex allows you to trade various types of cryptocurrencies with very minimal fees which are very affordable, it even supported a 0.00% maker fees which must have boosted liquidity on this exchange. This exchange was founded in 2017 by Komodo. In 2018, the exchange underwent an upgrade and moved from BarterDex to Komodo platform though there's no confirmed report as to whether the upgrade had been completed or not. Currently, BarterDex exchange is not accessible, it looks like the domain of the exchange had been placed for sale for interested buyers.