Remy Froissart, CNRS

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Syncswap multichain dex wallet setup and trading guide



Syncswap Multichain DEX Wallet Setup and Trading Step by Step Guide

Install the MetaMask browser extension from the official source. Create a new vault, securely storing your secret recovery phrase offline–never in a cloud service or text file.

Connecting to Multiple Networks

This platform operates across several Layer 2 networks. You must manually add each one to your interface.


Open your MetaMask extension and navigate to the network selection dropdown.
Select "Add network" and use the following parameters for zkSync Era:


Network Name: zkSync Era Mainnet



RPC URL: https://mainnet.era.zksync.io



Chain ID: 324


Currency Symbol: ETH
Repeat this process for Linea, using its correct RPC endpoint: https://rpc.linea.build. Chain ID is 59144.


Fund your vault with native gas tokens. Bridge ETH from Ethereum mainnet to zkSync Era using the official bridge. For Linea, acquire ETH directly on the network via a supported on-ramp service.

Executing Your First Asset Exchange

Navigate to the application's interface. In the upper corner, click to connect your MetaMask vault. Authorize the connection for the network you intend to use, like zkSync Era.


Select the token pair. To swap ETH for USDC on zkSync, input the amount. The interface displays an estimated output, factoring in liquidity pool fees and the current price impact. A 0.3% fee is typical for standard pools.


Verify the transaction details, especially the minimum received amount.
Confirm the swap in your MetaMask pop-up. Check the gas fee estimation before signing.
Track the transaction status via the linked block explorer. Cross-chain swaps will involve multiple steps and longer confirmation times.

Providing Liquidity for Returns

Navigate to the "Pool" section. Choose to create a new position. You must deposit two assets in equal value. For an ETH/USDC pool, you supply 50% worth of each token.


Depositing mints LP tokens, representing your share. These tokens accrue a portion of all trading fees from that pair. You can increase or remove your supplied assets at any time.

Managing Cross-Chain Transfers

The protocol's native bridge facilitates asset movement between supported chains. To move USDC from zkSync to Linea:


Select the bridge function.
Choose USDC as the asset, zkSync as the source, Linea as the destination.
Initiate the transfer. This involves two transactions: a lock on the source chain and a mint on the destination, which may take several minutes.


Always maintain a small balance of the native token (ETH on both chains) to pay for gas on the destination network for future actions.

Syncswap Multichain DEX Wallet Setup and Trading Guide

Install a browser extension like MetaMask or Rabby, fund it with ETH for gas on its native chain, then bridge assets directly to zkSync Era or Linea using the platform's integrated portal; always verify contract addresses before approving transactions.


Limit orders on this protocol can execute across several networks, offering better rates than simple swaps. For larger transactions, split them into smaller chunks to minimize price impact and consider providing liquidity to paired assets for a share of exchange fees, which compounds returns.

Q&A:
I'm new to Syncswap. Is it a wallet or an exchange, and what do I need to use it?

Syncswap is a decentralized exchange (DEX) built on the zkSync Era network. It is not a wallet itself. To use it, you need a self-custody web3 wallet like MetaMask or Rabby. You must set up this wallet first, ensure it has some ETH for network fees on zkSync Era, and then connect it to the Syncswap website to begin trading.

How do I get my funds onto zkSync Era to start trading on Syncswap?

You need to bridge assets from another network, like Ethereum Mainnet, to zkSync Era. After connecting your wallet to Syncswap, find the "Bridge" option in the interface. You can use SyncSwap wallet connect ([[https://sync-swap.com/blog.php|https://sync-swap.com/blog.php]])'s native bridge or a third-party service. Select the asset and amount, confirm the transaction in your wallet, and wait for the transfer to complete. This usually takes a few minutes.

Can I trade tokens from other blockchains, like Polygon or Arbitrum, directly on Syncswap?

No, you cannot trade assets from other chains directly. Syncswap operates on the zkSync Era network. All trading pairs involve assets that have been bridged to zkSync Era. If you want to use a token from Polygon, you must first bridge it to zkSync Era using a cross-chain bridge service that supports both networks. Once the token is in your wallet on zkSync, you can trade it on Syncswap.

What are the main steps to execute a swap on Syncswap?

First, connect your web3 wallet to the Syncswap website. Ensure your wallet holds the token you want to swap and enough ETH for gas fees. On the swap interface, select the input token and the output token you wish to receive. Enter the amount. The interface will show the expected output and fee. Review the details, including the price impact, especially for large trades on less liquid pools. Finally, approve the token spend (if it's your first time using that asset) and confirm the swap transaction in your wallet pop-up.

I made a swap but the tokens aren't showing in my wallet. What should I check?

Several points require verification. Check your wallet's network setting—it must be set to "zkSync Era". Confirm the transaction was successful by looking at the transaction hash in a block explorer like zksync-era.l2scan.com. Sometimes, you need to manually import the new token's contract address into your wallet to see the balance. Also, ensure you are looking at the correct wallet address. If the transaction failed, you likely still have the original tokens, minus a small gas fee.
Remy Froissart, CNRS

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