![]() ![]() MetaMask is a non-custodial wallet, meaning that users are always in control of their private keys. The wallet is available as both a mobile app and a browser extension, compatible with leading web browsers. Today, it supports a wide range of functionalities including storage, purchasing, sending, conversion, and swapping of different cryptocurrencies. Tap the copy icon next to an address to add it to your clipboard, ready to be added to MetaMask.Based in San Francisco, MetaMask is a decentralized Ethereum wallet that was launched by Aaron Davis in 2016 and is currently operated by ConsenSys. Like on the desktop browser, you can also click the three dots to see the address for different networks: The token page should look like below, with the token address visible in its own category near the bottom: Search on Coingecko for the name or symbol of the token you're looking to add. To do this in-app, use the search icon at the bottom of the screen. Once you're in the browser, find your way to Coingecko, or your preferred alternative. ![]() Open the in-app browser by tapping the hamburger icon in the top left of the homepage, or just open your usual browser, such as Safari on iOS. By default this automatically displays the token's address on Ethereum mainnet, but you can access others by clicking the three dots.Ĭlick the copy button (the overlapping squares/sheets of paper) to copy the displayed address to your clipboard, ready to be pasted into MetaMask. Extensionįind the 'Contract' category on the right. From the token's page, its contract address is easy to find, although it differs slightly between MetaMask Extension and Mobile. Both of these two main options offer the same functions detailed below.Īs an example, we've taken the Uniswap (UNI) token page from Coingecko. Token listing sites such Coingecko and CoinMarketCap hold a registry of all existing ERC-20 tokens. Where do I find a token's contract address? If you want to move ERC-20 tokens across different networks, always do your research to make sure you don't lose funds, and consider using test transactions before sending large sums. In other cases, such as Polygon, you can simply use the Polygon bridge (available here once you connect a wallet) to move tokens across, provided there are smart contracts deployed on both networks. If you transfer 10 ERC-20 tokens to a wallet on BNB Chain, you'll have 10 of the same token on BNB Chain, but in BEP-20 form and 'pegged' to the value of the ERC-20 original. The equivalence between the two standard means ERC-20 tokens on Ethereum and BEP-20 tokens on BNB Chain are interchangeable. BNB Chain/BSC and its BEP-20 standard is the most prominent example. Some networks have their own, parallel token standards which essentially equate to ERC-20. Outside of Ethereum mainnet, ERC-20 tokens are handled differently depending on the network you're using, and it can quickly get confusing. Similarly, if you want to send or receive a specific ERC-20 token, you have to do it by interacting with the token's address. Think of it this way: if you want to send or receive from your account, you'd use your public address. This is because the same cryptographic method is used in both situations (with slight nuances). When the originator first deploys the token's contract on the network, an address is generated that looks similar to the public addresses of Ethereum accounts. In addition to basic functions such as the symbol and name, token creators must also determine total supply and methods for managing the balances of all token holders - one of its core responsibilites. ![]() This wouldn't be possible if they didn't all adhere to the same standard.Įvery ERC-20 token is created by inputting some details into a template smart contract which then controls and manages the token. For example, you can add any ERC-20 token to MetaMask. The ERC-20 standard makes it considerably easier for wallets such as MetaMask, dapps, and other platforms to integrate existing and new tokens into their functions. ![]() This is a set of requirements for any fungible token on Ethereum - meaning one token has to have an identical value as other tokens of the same type, just like how one US dollar = one US dollar. What is a token address?Īs you may be aware, tokens on Ethereum mainnet generally conform to the ERC-20 standard. To find out more about adding tokens, head to our article on the subject to see several different methods. Depending on the method you use, finding a token contract address is one step in the process of adding a custom token to MetaMask. ![]()
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