Decibel has introduced its new on-chain market data platform on Aptos, offering CEX-grade data quality for algorithmic trading and market making. This development addresses the common challenges faced by traders in decentralized exchanges (DEXs), such as high latency and limited order book depth, which often lead to significant slippage and inventory risks. The Decibel platform features a fully on-chain trading engine with a central limit order book (CLOB) optimized for high performance, achieving sub-20ms block times and processing over 1 million orders per second. This is made possible by Aptos' Block-STM technology, ensuring real-time updates and deep liquidity through protocol and user-managed vaults. Decibel's data is clean, accurate, and low-latency, eliminating the risk of MEV manipulation and ensuring fair price-time priority. The platform's robust API supports multi-collateral cross-margin and composability with other DeFi protocols, making it ideal for high-frequency trading strategies and market makers seeking transparency and efficiency in DeFi environments.