To interact with dApps on Polygon, we need to ensure that Metamask can support Polygon (assuming we are using Metamask as our wallet). Polygon is a network separate from Ethereum, and therefore Metamask needs to know which URLs to use to send transactions to and get info from.
Adding a New Network
- Open Metamask
- Click on your user icon on the top right
- Click "Settings"
- Click "Networks"
- Click "Add Network" at the bottom
Polygon Network Details
- Network Name: Polygon
- New RPC URL: https://rpc-mainnet.maticvigil.com/
- Chain ID: 137
- Currency Symbol: MATIC
- Block Explorer URL: https://explorer.matic.network/
Click "Save", and you are done. Now when you want to use a dApp on Polygon, or view your assets on Polygon, make sure the "Polygon" network is selected on the network dropdown on the top part of the main view of Metamask.