OK
OKX Exchange
OKX is a global crypto exchange built for people who actually trade deep spot books, heavy perpetual liquidity, options where allowed, and a unified account that shares collateral across products. Fees start competitive (around 0.08%/0.10% spot, 0.02%/0.05% perps) and drop with VIP volume or OKB. The standout extras are monthly proof-of-reserves and a real self-custody Web3 wallet with DEX aggregation. It’s not a “tap buy Bitcoin” app for first-timers, and product access varies hard by country.