I am trying to add Binance Main and test net Network through web3 js. I don't want that user to setup it manually. Did you guys any idea about that how to handle it?

  • 1
    AFAIK this is still not possible with the current Metamask API.
    – pwagner
    Commented Mar 10, 2021 at 13:52

1 Answer 1


Use wallet_addEthereumChain method - https://docs.metamask.io/guide/rpc-api.html#other-rpc-methods

Example code:

method: 'wallet_addEthereumChain',
params: [{
chainId: '0x38',
chainName: 'Binance Smart Chain',
nativeCurrency: {
    name: 'Binance Coin',
    symbol: 'BNB',
    decimals: 18
rpcUrls: ['https://bsc-dataseed.binance.org/'],
blockExplorerUrls: ['https://bscscan.com']
.catch((error) => {
  • 2
    further to this chainlist.org, which is open source, has a large number of networks. Commented Nov 25, 2021 at 12:35

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