For a Matcha swap, choose a supported network where your tokens already sit and you have enough native gas to trade; move funds only when the likely saving exceeds the cost and wait of moving them. Matcha routes token trades across decentralized exchanges on the selected network. That choice determines which balances you can use, which liquidity can fill the trade, and what you pay to submit it.
What does the network selector change in a Matcha swap?
The selector chooses the blockchain on which your trade will execute. A token with the same name or ticker on Ethereum and Base has a separate contract and a separate balance on each network. Switching the selector does not move tokens between them. If your wallet shows a balance on Ethereum but zero on Base, the funds have not disappeared; the interface is looking at the Base balance.
Gas is separate too. Each EVM network needs a balance of its own native gas token to pay for transactions on that network. For example, ETH held on Ethereum cannot pay gas on Base, even though Base also uses ETH for gas. Polygon likewise needs its native gas token on Polygon. Solana requires SOL and a Solana-compatible wallet, rather than an EVM wallet network switch. Use any of these networks only when the interface supports the network and the token pair you want.
How can you tell which network is ready for a trade?
A network is ready when your input token appears in your wallet on that network, your wallet can sign there, and you have enough native gas for the required transactions. Start with the wallet’s network-labelled balance. Then look at the token contract shown for the selected chain, especially when several tokens share a name. A familiar ticker alone does not establish that you have selected the balance you intend to spend.
A Matcha DEX swap quote reflects the network and token pair you select. At matchaswap.pro, select the network holding your input token, connect a compatible wallet, and enter the pair to see the proposed route and estimated output. If the balance is empty, return to the wallet’s chain view before treating the quote as a fee comparison.
An EVM token may also require an approval before the swap. Approval is a separate transaction that lets the trading contract spend a specified amount of that token; it can require gas and must complete before the swap can use the balance. Seeing an approval confirmation does not mean the exchange has happened. Once any approval is complete and the wallet still has gas, you can review and sign the swap transaction.
When is a cheaper network worth moving to?
Moving funds makes sense only when the expected improvement in the trade outweighs the full cost of getting there. Compare the quoted output, network gas, any fee included in the route, and price impact. Price impact is the change in execution price caused by the size of your order relative to available liquidity. Matcha swap fees therefore cannot be judged from gas alone: a low-cost network may have a worse price for a thinly traded pair.
For a small trade, bridging to a cheaper network often adds a transfer fee and a wait that the lower swap gas will not recover. A bridge moves value between chains through a separate process: you submit a transaction on the source network, wait for the transfer to complete, and receive funds on the destination network before trading. You may also need destination-network gas. For a larger trade, deeper liquidity on Ethereum mainnet may produce enough additional output to justify higher gas. Compare the final amount you would receive under each complete route, rather than choosing by the network’s reputation for cheap transactions.
Can selecting the wrong network lose your funds?
Selecting a network in the interface does not itself move or spend tokens. The usual result of a mismatch is a zero balance, an unavailable pair, or a transaction that cannot proceed for lack of gas. To swap crypto on Matcha, return to the chain where the wallet shows the input balance and confirm that its gas balance covers the transaction prompts.
The consequential step is signing a transaction or initiating a transfer between networks. Before doing either, read the wallet prompt for the network, token, amount and destination. A swap stays on its selected network; changing chains requires a separate transfer. Quotes can also refresh while you wait for an approval or network confirmation, so review the final output and minimum received before signing the swap. If your tokens and gas are already together on one supported network, that is the practical default.