Cryptocurrency exchange software has spent the past decade optimizing liquidity, matching engines, and trading interfaces, yet the most critical bottleneck, the wallet layer, sits outside. Externally owned accounts (EOAs), controlled by a user’s private key, underpin most crypto wallets today but were never actually built for high-frequency trading or mainstream usability. Users need to manually manage seed phrases, approve tokens, hold native gas tokens, and sign multiple transactions before executing a single trade. End users gain exposure to low-level blockchain mechanics and a fragmented flow that TradFi platforms eliminated years ago.