2 Easy ways to add Polygon Network to your metamask
Automatically Add Network With PolyCUB.com
There are 2 extremely easy ways to add Polygon to your Metamask RPC settings. The first is to simply head over to https://polycub.com (once the UI is live). When you get there, PolyCUB.com will automatically prompt you to "Add Polygon As a Network" if you haven't added it already. If you have added it, then it will simply prompt you to switch to Polygon Network if you're not already on it.