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I saw this doc on adding a custom RPC endpoint to MetaMask. I'm wondering what are the steps to fill out the information specifically if I have an Alchemy endpoint available?

I would like to use the Polygon mainnet endpoint.

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  1. First, you'll need to sign up for an Alchemy endpoint, and hit "create app".

createapp

  1. Set it up as a polygon network. Once up, you can click on the app and hit "view key" to see the HTTP endpoint.

viewapp

And copy the HTTP endpoint.

  1. Click on the Account button in your metamask:

metamask

  1. Go to settings -> Networks -> Add Network

settings

Networks

add network

  1. Fill in the details for polygon, replacing ALCHEMY_URL with the URL you copied from Alchemy

Network Name: Polygon Mainnet Network URL: ALCHEMY_URL Chain ID: 137 Currency Symbol: MATIC Block Explorer (Optional): https://polygonscan.com

Hit save.

Then you should see it in the networks dropdown of your metamask!

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