Two different bets
OKX holds second place on the market for spot book depth while offering a full instrument set: dated futures, options, a Web3 wallet. MEXC wins on two things OKX does not have: early listing and a zero maker fee.
The fee decides more than it seems
On MEXC a limit order that sits in the book and waits to fill costs nothing. For strategies with many trades that outweighs almost everything else.
Triangular arbitrage shows it best: three trades at the usual 0.1% cost 0.3%, more than most routes return. At a zero maker fee those same three trades cost nothing. Working triangles today are found almost only on MEXC.
The OKX base maker fee is below the market average and falls further with OKB held on the balance.
Depth decides whether your order fills
Here OKX is clearly ahead: second place on the market for major pairs. The practical rule is simple — on the wide MEXC listing always read the price together with volume and book depth.
The OKX Web3 wallet
Inside the OKX app lives a non-custodial wallet with a DEX aggregator: buy a coin on spot, move it to your wallet, swap it on a decentralised exchange — without leaving the interface. For work across centralised and decentralised venues that shortens the route considerably.
What OKX gives you
Spot
Over four hundred USDT pairs and two hundred and seventy-two direct euro pairs.
Futures
Perpetual and dated, almost five hundred contracts.
Options
A proper section.
Web3 wallet and X Layer network
With free USDT withdrawals.
Earn
Savings, staking, dual investments, structured products.
Jumpstart
New token launches.
Copy trading and bots
.
What MEXC gives you
Spot
Fifteen hundred pairs, zero maker fee.
Futures
Over a thousand perpetual contracts.
P2P
Hryvnia, tenge, lira and dozens of other currencies.
Earn
Savings and staking on fresh coins.
Kickstarter and Launchpad
Join launches.
Copy trading
Mirror other traders.
Free USDT withdrawals on the Plasma network
.
A separate setup for Europe
Worth knowing in advance: for European Economic Area users OKX operates through a separate legal entity on a separate domain. Accounts and API keys do not carry across, so set everything up there from the start.
Who each one suits
OKX — for core trading, large sums, options and DEX work.
MEXC — for limit-order strategies where the fee decides, and for new listings in their first hours.
What the numbers say
Where OKX and MEXC diverge the most
OKX asks less to move USDT — 0.0032 over ARBITRUM; MEXC comes to 0.0100 BSC. Routes out differ: 16 USDT networks on OKX, 8 on MEXC. A chain the other lacks is sometimes the cheapest way home. On perpetual contracts MEXC is ahead — 1,112 to 528. MEXC feeds the scanner P2P in 60 currencies; OKX in 30. MEXC gives 3× the choice on spot: 1,413 USDT pairs against 475.
Where these numbers come from
Pair counts, withdrawal networks, fee rates and the P2P currency list come from the exchanges own public interfaces. Where a venue withholds a field, the table shows a dash and an explanation.
Date of the last recalculation
Snapshot from 12 November 2026; on the page the figures refresh on every visit.
OKX
MEXC