Extended Exchange is a self‑custody, hybrid perpetual trading platform that blends the speed and familiarity of centralized exchanges (CEX) with the transparency and security of decentralized ones (DEX). It uses a hybrid central limit order book off‑chain and settles trades on-chain via StarkWare’s StarkEx, offering ultra-fast (<10–20 ms) execution, gas-free trading, and up to 50‑100× leverage on crypto and TradFi assets, all while users retain full control of their funds
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