o1.exchange is an onchain trading platform that functions as a meta DEX aggregator, onchain trading terminal, and mobile trading interface. It integrates spot trading, perpetual futures, and prediction markets into one interface, allowing users to build and execute advanced strategies across multiple assets and chains. The platform operates live on Base, Solana, and BNB Chain. The name o1 refers to O(1) computational runtime complexity and its positioning as an all-in-one trading platform. Users access aggregated liquidity through a self-custodial setup with features such as limit orders, TWAP, sniping, and MEV protection. It connects to protocols including Hyperliquid for perpetuals and Kalshi for prediction markets. Since the product beta, it has recorded over $220 million in spot volume, more than 3 million transactions, and approximately 400,000 user signups within seven months. It ranks among the top revenue-generating protocols on Base. A $4.8 million seed round was completed, led by Coinbase Ventures, with participation from AllianceDAO and a16z. The platform emphasizes technical architecture for execution speed and strategy composition while maintaining full user control of assets.