OpenBook

Serum is a decentralized exchange (DEX) and ecosystem that brings unprecedented speed and low transaction costs to decentralized finance. It is built on Solana and is completely permissionless. Full limit orderbooks with an interface familiar to that of centralized exchanges. Sub-second trading and settlement. Lower transaction costs than any other DEX: $0.00001 per transaction. Project Serum will unveil a fully functional decentralized exchange with trustless cross-chain trading, all at the speed and price that customers want. And despite living natively on Solana, it will be interoperable with Ethereum. SRM will be fully integrated into Serum, and also benefit from a buy/burn of fees. Trustlessly exchange assets between chains, this is in contrast to most current protocols that rely on trusted parties to administer the swap. A decentralized automated full limit orderbook. Full Ethereum and Solana integration. Physically settled cross-chain contracts.

Raydium is an automated market maker (AMM) built on the Solana blockchain which leverages the central order book of the Serum decentralized exchange (DEX) to enable lightning-fast trades, shared liquidity and new features for earning yield. Other AMM DEXs and DeFi protocols are only able to access liquidity within their own pools and have no access to a central order book. Additionally, with the majority of platforms running on Ethereum, transactions are slow and gas fees are high. We leverage the efficiency of the Solana blockchain to achieve transactions magnitudes faster than Ethereum and gas fees which are a fraction of the cost. Raydium provides on-chain liquidity to the central limit order book of the Serum DEX, meaning that Raydium allows access to the order flow and liquidity of the entire Serum ecosystem. For traders who want to be able to view TradingView charts, set limit orders and have more control over their trading.