If you're ready to go, smash that Swap swiper across the screen! That's a whole topic in and of itself (start here), but that's the amount the network is going to charge, plus MetaMask's fee. You can see details such as the exchange rate, and optionally you can dive into how the quote got calculated, as well as advanced gas settings. The main feature is in the middle of the screen: the amount of tokens that you are going to acquire (keeping in mind slippage) as of the last quote. First of all, up at the top, you'll see that Swaps is continuing to do all the work that we mentioned previously on an ongoing basis, ensuring that you're getting the most up-to-date price and availability. There's kind of a lot going on here, but don't be alarmed. So with that DeFi number-crunching done, you get the quote screen: Executing your Swap Slippage is yet another parameter that Swaps is using in your favor, and it's explained in more detail up above. ![]() Some eagle-eyed users will have noticed on the previous screen, in the lower left-hand corner, a mention of "2% slippage". Swap's failure rate is very low, and improvements are in the works to make it almost nonexistent. MetaMask is saving users here from the pain of a failed transaction: with Ethereum mainnet gas fees and the complexity of token smart contracts, a failed transaction adds a significant financial injury to the insult of an incomprehensible error code. There's a lot going on behind the scenes while you're watching Swaps search.įirst of all, Swaps is searching across decentralized token exchanges and token swapping protocols to find you the most advantageous exchange rate.Īt the same time, it's running test transactions, checking to make sure that if you do end up submitting a transaction, that it's likely to go through - and if not, those options are filtered out. This process is the secret ingredient in making MetaMask Swaps the cheapest and best swapping service out there. ![]() You'll see the app go through a process of searching for the best price. Adjust the amount of the first token up or down until you're comfortable with the amount you're spending, and the amount you're acquiring.Further down, choose the token you're interested in acquiring using the second drop-down menu.First, choose the token that you have, that you're willing to 'spend', using the drop-down menu at the top.If you are performing swaps directly on a different platform or another DEX, MetaMask may provide some general orientation or guidance, but it should not be considered definitive reach out to the support team or community for the exchange or platform where you are swapping for assistance. In other words, MetaMask provides support for the swaps that happen through the use of the MetaMask Swaps button. Our support articles are for MetaMask Swaps only.If you swap some tokens into your wallet, but don't see them (after a few minutes - remember, blockchain is fast, but it's not instantaneous), try adding the tokens manually. ![]() Custom tokens is what MetaMask calls tokens that aren't common or widespread enough to be in MetaMask's standard list of tokens, which are detected by default when you have Ethereum mainnet ( and a handful of other popular networks) selected as your network in MetaMask.This is why Swaps allows a little bit of a difference between the price you agree on and the final price, to ensure your transaction goes through - but not too much, in order to protect you from sudden spikes or drops. Given the highly liquid and fluctuating nature of decentralized finance and cryptocurrencies, prices can change from second to second. Slippage is the amount of change between the price you click on and the final transaction price that MetaMask Swaps will tolerate.Of course, there are other less malicious caveats: for example, some tokens you can acquire, but to gain the utility intended from them, you need to stake them on a specific platform. One of the novelties of cryptocurrencies and decentralized finance is their programmatic nature a token isn't necessarily a static asset it may have functions that can affect how it is used, or how it affects your wallet - like this, for example. Even if a token complies with the ERC-20 standard, you shouldn't buy or obtain a token without researching it first.MetaMask Swaps is currently available on: ![]() It's super convenient and straightforward, and drastically reduces the number of steps needed, and the amount of exposure to third-party smart contracts, in order to obtain tokens that interest you. MetaMask Swaps is a MetaMask feature that allows you to do exactly that: swap one cryptocurrency token for another (for more on ERC-20 tokens and the difference between these and NFTs, see our user guide ).
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