How to add the Polygon (Matic) sidechain to Metamask


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

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.