Add Harmony Mainnet To MetaMask

MetaMask Mobile App Guide

Kev | Brother Validator
3 min readSep 19, 2021

Today we will be adding Harmony network on MetaMask to be able use it as a Harmony Wallet. This method can be used on the PC but it will be set up different. You can view the guide for PC here

Adding Custom RPC Endpoint

Open up MetaMask app and select the “Menu” button at the top left hand side. Then scroll down and press the “Settings” section.

From here you will look for “Network” and select it. On the next page you will need to select “Add Network”.

Here you will need to add a few text that you CANNOT MISSPELLE or it will fail. I will post them down below for you to copy an paste it or type them in.

Network Name: Harmony Mainnet


Chain ID: 1666600000

Symbol: ONE

Explorer URL:

Check with the photo below and if everything is correct select “Add”.

You will be taken to the homepage of MM but this time you will notice that Harmony Mainnet is displayed under “Wallet”.

Congratulations you have successfully added a Custom RCP Endpoint on your MM wallet! If you have any questions please reach out to me on Twitter @OniiiONE or Telegram @kevkellius. I am happy to help. Please share to friends and family. Thank you so much for your time. If you would like to support me I run BrotherONE Harmony Validator. You can delegate your $ONE tokens with my link here



Kev | Brother Validator

Brother Validator @OniiiOne Ran by @KevKellius, Blockchain enthusiast, and decentralization supporter. Follow me on twitter for more updates