Metamask is a wallet with its default network being Ethereum. It supports other EVM chains, but since those other chains do not come with the wallet by default, we would have to add them.
Polygon:
Polygon is a layer-2 blockchain network built on top of the Ethereum layer. Polygon gained wide acceptance in the ecosystem because of its scalability, speed and affordability in terms of gas fees. Its native currency is known as MATIC.
How to add on Metamask
- Go to the image by the right top corner of your wallet and click on it. Options would be available on the next step. Then click on the settings option.
- Once settings is open, you would see the network option as part of its contents then click on it.
- You would see the Add network button, click on it. This would open a new screen for you to start your input.
Network Name: Polygon
New RPC URL: Choose one of the options below
- https://polygon-rpc.com
- https://rpc-mainnet.matic.network
- https://rpc-mainnet.maticvigil.com
- https://rpc-mainnet.matic.quiknode.pro
Chain ID: 137
Currency symbol: MATIC
Block Explorer URL (Optional): https://polygonscan.com
Click on save to add the network
When you go back to your wallet, you would see the network has been added.
Celo:
Celo is a layer-1 blockchain which means that it is different from Ethereum. It has it’s own nodes and does not run on top of any other blockchain asides itself. The main difference is that Celo allows you to pay transaction fees in other cryptoassets and not native currency like Ethereum which uses ethers. Its currency is CELO.
How to add to Metamask
Follow steps 1–3, then for its information:
Network Name: Celo (Mainnet)
New RPC URL: https://forno.celo.org
Chain ID: 4220
Currency Symbol: CELO
Block Explorer URL (Optional): https://explorer.celo.org
Binance:
Binance Smart Chain (BSC) is EVM compatible, consensus layers, and with hubs to multi-chains. In theory, this makes it easy for developers to port their projects over from Ethereum. For users, it means that applications like MetaMask can be easily configured to work with BSC.
How to add to Metamask
Follow steps 1–3, then for its information
Network Name: Binance Smart Chain
New RPC URL: Choose one (Recommended)
- https://bsc-dataseed.binance.org/
- https://bsc-dataseed1.defibit.io/
- https://bsc-dataseed1.ninicoin.io/
- https://bsc.nodereal.io
Chain ID: 0x38, 56 in decimal (if 56 doesn’t work, try 0x38)
Currency Symbol: BNB
Block Explorer URL (Optional): https://bscscan.com
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How To Use Polygon, Celo and Binance With Metamask was originally published in Coinmonks on Medium, where people are continuing the conversation by highlighting and responding to this story.