Go to https://o3swap.com/ Click Swap on the homepage to enter the exchange page.
Connect the wallet and confirm the connection in the pop-up window.
Neo swap: currently support O3 Wallet and NeoLine
Eth, BSC, Heco cross-chain swap: currently support Metamask
Choose the token in “From” and “To” and enter the amount you want to exchange.
Click “RFQ”, on the transaction detail page, you will see the amount, value, trading route, rate, and fee.
You can also choose other routes by clicking “More Trading Price”.
Click “Confirm” after you make sure all transaction information is correct.
The Metamask or O3 Wallet will show you a pop-up window to confirm the transaction. You can adjust the GAS fee (network fee) here.
After confirming the transaction on the wallet. You can always check the transaction states on corresponding explorers.