The OneKey App offers its users an interface through the Trade module, enabling on-chain token swaps and cross-chain transfers via integrated third-party providers. OneKey charges a service fee for facilitating this technology and routing infrastructure. Below is a full breakdown of the current service fee structure for the Trade module, which includes Swap and Bridge.
🔔 Key Highlights
✅ 0% service fee on supported stablecoin swaps
✅ 0.3% service fee for all other swap and bridge transactions
✅ No hidden fees — pricing is always shown before confirmation
Networks Supporting Free Stablecoin Swaps
Swaps between the stablecoins listed below on the same network currently qualify for 0% service fees.
Network | Supported Stablecoins |
Avalanche C-Chain | USDT, USDC, USDC.e, DAI.e, BUILD |
Optimism | USDT, USDC, USDC.e, USDe, DAI, BUILD |
Scroll | USDT, USDC, USDe |
TRON | USDT, USDC |
Mantle | USDT, USDC, USDe |
BNB Smart Chain (BSC) | USDT, USDC, USDe, USD1, DAI, lisUSD |
Ethereum | USDT, USDC, USDS, USDe, sUSDe, DAI, USDF, BUILD, USD1, USDTb, FDUSD, PYUSD, TUSD, USD0, USD0++, crvUSD, USDY, USDX, RLUSD, USDD, M, USYC, GHO, USDA, USR, DOLA, TBILL, FXS, deUSD, YU, fxUSD, reUSD, sDAI |
Base | USDC, USDS, USDT |
NEAR | USDT, USDC |
Polygon PoS | USDT, USDC, USDC.e, DAI |
Arbitrum One | USDT, USDC, USDC.e, USDe, DAI, USDS, BUILD, FDUSD, USDY, USD0 |
Solana | USDT, USDC, PYUSD, USDS, FDUSD, USDY |
Frequently Asked Questions (FAQs)
How is the service fee calculated?
Service Fee = Transaction Amount × Fee Rate
Examples:
Swap $10,000 between supported stablecoins
→ $10,000 × 0% = $0Swap $10,000 between other tokens
→ $10,000 × 0.3% = $30
When are service fees deducted?
Service fees are applied automatically when the swap is executed and are reflected in the final transaction details.
Will the fee rates or supported tokens change?
Yes. OneKey may adjust fee rates, supported networks, or token lists at its sole discretion to maintain fairness, compliance, and operational efficiency. We recommend checking this announcement periodically for updates.
Does the 0% service fee apply to all swap providers in OneKey App?
No. The 0% service fee applies only to eligible stablecoin swaps processed through providers where OneKey manages the fee structure. Some third-party exchange providers integrated in the OneKey App (E.g., Changelly, ChangeHero) also support stablecoin swaps. However, swaps routed through these providers are not eligible for the 0% service fee. Any applicable fees will be clearly shown in the transaction preview before you confirm.