Skip main navigation

Changing to a testnet and accessing free tokens

In the video, Chris Berg of RMIT's Blockchain Innovation Hub shows how to access free tokens from a testnet.
(upbeat music) <v ->Now that we’ve installed a web wallet MetaMask,</v> we’re gonna need some cryptocurrency to play with. The most obvious way to do this is to buy some cryptocurrency say from a major cryptocurrency exchange, such as Coinbase or Binance or FTX. But I’m going to show you how to interact with the tester and the Ethereum network, which developers use to test their applications before they go live on the main Ethereum network or what we call main net. So the first thing that we need to do is to switch our MetaMask wallet from main net to a testnet. If we open up MetaMask and click on Ethereum main net up here, we can choose between a range of testnets.
For our purposes, we’re going to choose the Ropsten testnetwork. Now that we’re on the testnetwork, there are a number of websites which will give us test Ethereum to play with these test tokens are valueless, but at least they’re free. So I’m going to visit what we call a Testnet faucet. The one I’ll use is provided by a company called the dimensions network. But if you search for any Ropsten testnet faucet in any search engine, there are many to choose from. Once you’re there though, getting testnet tokens is pretty simple. I simply open MetaMask. I click on my public Ethereum address up here to copy it, and I paste it into the address box on the website.
Then I click send Ropsten ETH. After a few minutes, the transaction goes through and now I’ve got Robsten Testnet Ethereum, five of them, in my wallet. If I return to the blockchain Explorer Etherscan, I can see that transfer of funds from the faucet to my wallet on the blockchain itself right here. So in this video, we’ve moved our Metamask wallet to the Testnet, interacted with a Testnet faucet, and observed the transaction on a blockchain explorer. (upbeat music fades)

Testnets allow you to interact with DeFi without investing real money. This allows you to perform tasks in a hands-on manner without incurring financial risk.

Follow along with Associate Professor Chris Berg as he switches to the Ropstein testnet and accesses free tokens. Make sure to get your free tokens. You will use them to perform your first DeFi interaction soon.

This article is from the free online

Decentralised Finance: Blockchain, Ethereum, and The Future of Banking

Created by
FutureLearn - Learning For Life

Our purpose is to transform access to education.

We offer a diverse selection of courses from leading universities and cultural institutions from around the world. These are delivered one step at a time, and are accessible on mobile, tablet and desktop, so you can fit learning around your life.

We believe learning should be an enjoyable, social experience, so our courses offer the opportunity to discuss what you’re learning with others as you go, helping you make fresh discoveries and form new ideas.
You can unlock new opportunities with unlimited access to hundreds of online short courses for a year by subscribing to our Unlimited package. Build your knowledge with top universities and organisations.

Learn more about how FutureLearn is transforming access to education