Aptos's new on-chain transaction engine, Decibel, has launched on the testnet, opening up several key features.

Mars Finance reports that on November 20th, Decibel, a full-chain trading engine based on Aptos, officially launched its testnet. This protocol, jointly built by the Decibel Foundation and Aptos Labs leveraging Aptos' high-performance infrastructure, aims to provide a new execution and risk control framework for programmable and composable on-chain trading scenarios. The testnet already supports several core capabilities, including: sub-second transaction execution, a full-chain risk engine co-developed with Gauntlet, programmable order flow, encrypted mempool, gas-free cross-chain deposits, batch orders, sub-accounts, and real-time price data and risk monitoring based on Chainlink. Furthermore, the Decibel testnet simultaneously opens up backend trading APIs containing developer code, allowing developers to build programmable trading applications and earn a share of transaction fees through their code. Users can currently participate in testing, experience related features, and submit feedback.