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Tutorial to install Metamask wallet & add Harmony Testnet

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Tutorial to install Metamask wallet & add Harmony Testnet

OpenWorld
Jun 1, 2022
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Tutorial to install Metamask wallet & add Harmony Testnet

openworldvision.substack.com

This tutorial is for people who do neither know how to install Metamask wallet nor add Harmony testnet into Metamask. It will be for desktop and mobile.

Warning!
Use a specific wallet for test net and testing purpose only.
Don’t use it to store any token on main net. If you want to store main net token, please create another wallet for that purpose!

With Metamask wallet

(1) Installing Metamask, from https://metamask.io/download/. Choose Chrome, iOS or Android to download and install it.

Make sure you visit that page, and click on App Store or Google Play icon to download. Don’t search on either App Store or Google Play. In bad case, you might find a fake app that is terrible.

(2) Creating your wallet (back up mnemonic seed as well)

Click on Create a wallet

Click on I agree

Enter your password. Click Next

Click on “Click here to reveal secret word” then you will get mnemonic seeds. You must write it down for later recovery, just in case. Then click on “Next”

Then pick words according to your backup, in orders. Click on “Confirm” when you pick all words

Click on “All Done” to finish

(3) Adding Harmony testnet to your wallet

Open MetaMask and click the list of networks at the top, then select "Add Network".

Filling the Endpoint Information

  • Network Name: Harmony Testnet

  • New RPC URL:

  • https://api.s0.b.hmny.io

  • Chain ID: 1666700000

  • Currency symbol: ONE

  • Block explorer URL: https://explorer.pops.one/

Click the Save button and your configuration should be done!

Read more there:

  • https://docs.harmony.one/home/general/wallets/browser-extensions-wallets/metamask-wallet/adding-harmony

With Metamask (on mobile)

(1) Downloading and installing Metamas for Android.

  • From https://metamask.io/download/

Make sure you visit that page, and click on App Store or Google Play icon to download. Don’t search on either App Store or Google Play. In bad case, you might find a fake app that is terrible.

Then, click on Install

Click on Get started > Create a new wallet >> I agree

Then fill in your password >> Check I understand >> Click on Create password

Click on Start >> Confirm (your password) >> View (tap on View to see your secret recovery seed phrase, you must write it down) >> Continue (then pick words to complete) >> Done

Go to Settings (top left corner)

Click on Add network

Then fill in the Endpoint Information as below

  • Network Name: Harmony Testnet

  • New RPC URL:

  • https://api.s0.b.hmny.io

  • Chain ID: 1666700000

  • Currency symbol: ONE Block explorer URL:

  • https://explorer.pops.one/

Then you are done!

Now, you already have a wallet on Harmony testnet, and you can use it to join OpenWorld Testing Program (announcement and details will be given later)

How to add $OPEN Testnet on Harmony in your Metamask?

Let’s do as follows

Click on Import token (at bottom)

Copy and paste the smart contract address: 0x81d46b953ea84204AC1CaB75A4cB188E2529DCFB

Then Token symbol and token decimal will be filled automatically.

Click on Add Custom Token, then you will see

Click on Import Tokens to finish

Now, in order to receive $OPEN testnet from OpenWorld team, please fill your form with the address starts with 0x

In order to $ONE address to claim $ONE testnet from faucet, click on ONE, then Account details

Click on View account at explorer.pops.one


Here you go with your $ONE testnet address, for example with this one

  • https://explorer.pops.one/address/0x156e64f58ee190f3005e57cae4abba5fdc1e68b6

  • Address is: one1z4hxfavwuxg0xqz72l9wf2a6tlwpu69k9wtm5c

  • Use that address to claim faucet at https://faucet.pops.one/

Then click on Send me

Then you will receive $ONE testnet

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