0x is an open source protocol of a new kind allowing Ethereum token requests to be traded on the Ethereum blockchain for free. The world's value is tokenized by this cryptocurrency which assures an off-chain order relay and on-chain settlement. Utilizing the protocol, 0x orders are transported off-chain. This innovation contributes to the massive reduction of gas costs and the elimination of the blockchain bloat. Anyone can build a relayer, enroll the full potential of the platform and the services introduced for trading purposes. Improving the efficiency, dynamics, securement and off-limit imposed on virtual trading, the platform is built on the Ethereum's blockchain distributed network. With no centralized point of failure and no downtime, each trade is settled atomically and without counterparty risk. Using innovative technology elaboration is free. By sharing a standard API (Application Programming Interface), relayers can dynamically, easily and quickly aggregate liquidity pools affecting them and assuring more relayers to come online. One can trade directly with a known counterparty for free or pay a relayer fee to access their liquidity pool.