If you're using Metamask connecting to Binance Smart Chain is easy. Follow these steps for adding Binance Smart Chain to your list of RPC endpoints or main chains.
We want to click Add Network in the top-right corner to manually add the Binance Smart Chain one – it doesn’t come packaged with MetaMask. It’s important to note that there are two networks we can use here: the testnet or the mainnet.
Below are the parameters to fill in for each.
Mainnet (This is the one you are probably looking for)
Network Name: Smart Chain
New RPC URL: https://bsc-dataseed.binance.org/
Block Explorer URL: https://bscscan.com