Decibel, a full-chain transaction engine, has officially launched with a pre-deposited fund of $58 million.

Decibel, a full-chain trading engine incubated by Aptos Labs, has officially launched, allowing users to trade on-chain perpetual contracts based on Aptos' high-performance underlying infrastructure. The mainnet version features a full-chain limit order book that verifies all transactions, a transparent on-chain risk engine, a DLP liquidity pool co-developed with Gauntlet, and the X-Chain account system supporting funding from Aptos, Ethereum, Solana, and CEXs. It uses Bridge's native USD stablecoin usDCBL as the default collateral asset and is equipped with institutional-grade tools and an open Builder Codes developer layer. During the previous testnet phase, over 700,000 unique accounts and 132,000 daily active accounts were generated, with an average of over 1 million transactions per day, and $58 million in pre-deposited funds, approximately 50% of which came from Solana and Ethereum ecosystem users. In the future, Decibel plans to expand from the crypto perpetual market to the spot market, a unified account system, and multi-collateral structures, and explore on-chain deployments for real-world assets, stock indices, and foreign exchange markets, aiming to bring more institutional-grade trading traffic to the Aptos ecosystem.