SyncSwap is a decentralized exchange where you trade tokens from a wallet you control. It uses liquidity pools, which are funds deposited by other users, to fill trades on supported blockchain networks. You can also deposit tokens into a pool and earn a share of its trading fees.
How Do You Swap Tokens?
To swap, connect your wallet and choose the network that holds your tokens. DefiLlama lists ZKsync Era, Linea, Scroll and Sophon among its active networks as of 29 October 2026. Available tokens and pools differ by network, so check the network before entering an amount.
The SyncSwap swap screen shows how much you expect to receive for the tokens you enter. Check the output token’s contract address, the quoted amount and the minimum you would accept. When those figures look right, you can swap tokens on SyncSwap by confirming the trade in your wallet.
A token may need a separate approval transaction before its first swap. Approval lets the exchange contract spend the amount your wallet permits; the swap is another transaction. You also need the network’s gas token to pay for processing.
Tokens on another network need a bridge, which transfers assets between networks, before you can trade them here. Selecting Scroll in your wallet does not move tokens you hold on ZKsync Era. Check where the tokens actually sit before trying the swap.
How Does SyncSwap Set the Price?
A pool sets its price from the tokens available in it. A trade adds one token and removes the other, changing the balance and the next price. This is called an automated market maker: a rule prices trades without waiting for someone to place a matching order.
The pool model matters because different token pairs behave differently. The available models can include:
- Classic Pool: For general token pairs; its price moves as the pool balance changes.
- Stable Pool: For assets expected to stay close in value, such as two dollar stablecoins.
- Aqua Pool: Uses automated concentrated liquidity, placing more funds near the current price.
- Range Pool: Lets providers choose a price band where their funds serve trades.
The quoted route may pass through more than one pool if that gives a better result. What matters is the final amount received after the whole route, not the fee shown for one pool. A larger trade can also push a thin pool’s price further than a smaller trade.
What Does a Trade Cost?
A trade costs the pool’s swap fee, network gas and any price impact. Price impact is the change caused by your own trade using up part of a pool’s available tokens. SyncSwap trading fees vary by pool; Zellic’s contract audit also describes fees that can differ by trade direction.
For example, a quoted 0.1% pool fee costs $1 on a $1,000 trade. Gas is paid separately and changes with the network and transaction. A route through two pools can charge a fee at each step, so compare the final quote before signing.
Consider a $100 swap between two stablecoins in a deep Stable Pool and a $5,000 ETH swap through a thin pool. The first may barely move the price; the second can lose far more to price impact than to the stated fee. Splitting the larger trade or waiting for deeper liquidity may improve the result, though extra transactions add gas.
Slippage tolerance sets how far the execution price may move after you request a swap. At, say, 0.5%, a worse move beyond that limit causes the trade to fail rather than fill at that price. A wider limit reduces failed trades but accepts a worse result.
How Do You Provide Liquidity?
Providing liquidity means depositing tokens into a pool so traders can swap against them. Choose a pair and pool model, review the deposit amounts, then approve and confirm from your wallet. A pool position records your share; you can later remove it to receive your share of the pool’s current tokens.
For a Classic Pool, you would usually deposit both tokens at equal market value. If the pool holds ETH and a dollar stablecoin, an example deposit is $500 of each. Depositing only one side may trigger an internal swap, which adds a trading cost.
Fees earned can offset some risk, but they are not a fixed return. If ETH rises or falls sharply, the pool changes your token mix as traders use it. Your withdrawn position may then be worth less than simply holding the original tokens; this difference is called impermanent loss.
A Stable Pool reduces price movement when its assets hold their peg, but a broken peg can still hurt providers. A Range Pool can put funds to work more efficiently within its chosen band; outside it, that position stops earning swap fees. Match the pool model to the pair and the time you can spend managing it.
When Is It Worth Using?
Use the final quoted output to judge a swap, alongside gas, price impact and the steps required. For liquidity, compare realistic fee income with the risk of a changing token mix. Before every confirmation, refresh the quote: a good price from a minute ago may no longer be the price you get.