DEX

Uniswap is the largest decentralised exchange by volume, operating on Ethereum mainnet, Arbitrum, Optimism, Polygon, Base, and several other EVM chains. Offers spot AMM swaps via Uniswap v3 and v4 (concentrated liquidity). No KYC, no custody.

dYdX is a decentralised exchange focused on perpetual futures trading. Unlike most DEXes which use AMMs, dYdX runs an on-chain order book on its own dYdX Chain (Cosmos SDK). Offers up to 20× leverage on 50+ markets with low fees.

GMX is a perpetual-futures DEX on Arbitrum and Avalanche. Trades against a multi-asset GLP pool (v1) or a curated set of price-quoting pools (v2). Up to 50× leverage, no funding-rate spirals, and a meaningful share of fees paid back to GMX stakers and GLP holders.