The trade page of the SaucerSwap web app.
Prerequisites
- A connected Hedera wallet
- HBAR to cover network fees
- Tokens on the side of the market you want to trade
Reading the market
Each market pairs a base token with a quote token, priced as quote per base. The main surfaces on the page:
Markets have trading increments: prices and sizes snap to the market’s tick and lot grid, and each order must meet the market’s minimum notional. A market can also be halted by the operator, during which orders do not match.
Order types
- Market order — executes immediately against the best available prices in the book (and AMM liquidity on enabled markets). You trade certainty of execution for certainty of price.
- Limit order — rests in the book at your chosen price until it fills, you cancel it, or it expires at its deadline. Limit order deadlines range from 30 seconds to 90 days. A resting limit order is maker flow; an order that crosses the spread takes liquidity.
Place an order
1
Open the trade page and pick a market
Go to the trade page and select the market you want from the market selector.
2
Accept the order book terms
Before your first order, the interface requires you to accept the V3 legal terms in-app. Review the risk notice and terms of service first.
3
Choose side and order type
Pick buy or sell, then market or limit. For a limit order, set your price and, if you want one, an expiry deadline; for a market order, just the amount.
4
Enter the amount and review
Enter how much you want to trade. Check the order value, the estimated fee, and — for market orders — how far your size reaches into the book’s depth. Large market orders in thin books execute at progressively worse prices.
5
Sign the order
Confirm and sign the order in your wallet. Signing authorizes settlement within the exact parameters you signed — price limit, amount, and deadline — and nothing beyond them. Review every wallet prompt before signing.
6
Track the order
Open orders and fills appear on the trade page, and your full history is on the dashboard page under Order History. Orders can fill partially: several fills may add up to your total, and a limit order can remain partly filled until its deadline.
Cancel an order
Select the open order and request cancellation. Cancellation is asynchronous: the request is accepted first and confirmed shortly after, so treat an order as live until you see it reach a canceled state. A cancellation can arrive too late to prevent a match that was already in flight — this is inherent to order book trading, not a malfunction.Order lifecycle
An order moves through: open → partially filled (possibly repeatedly) → filled, canceled, or expired. The on-chain settlement contract is the source of truth; interface and API statuses can briefly lag it. If a status looks inconsistent, check the transaction on HashScan before acting on it.Building a bot or integration? The same order book is fully accessible programmatically — see the Orderbook API.
Next steps
V3 concepts
How off-chain matching, on-chain settlement, and the AMM backstop fit together.
V3 fees
Taker fees, maker rebates, and how fee rates are expressed.
Risk notice
The full V3 order book risk disclosure.
Swap instead
For instant execution at the best quoted route, use the swap page.