One of the most promising concepts of second-generation blockchains is that of dApps (or “decentralised applications”). These are apps built on top of a blockchain. To date, few have made the headlines (with the exception, perhaps, of
CryptoKitties
), but there is a an increasingly large amount being pushed to the Ethereum mainnet, and even more in the works — State of the Dapps
lists
a range of projects in various stages of development.
MetaMask will let users interact with these dApps using only their browser.
Bitcoin Magazine spoke with James Moreau from the MetaMask team to get a grasp of how their platform grants access to the growing ecosystem of games and applications on the Ethereum blockchain.
“MetaMask reduces one of the major headaches of using dApps,” Moreau said. “That is, running a full Ethereum node. Before MetaMask’s arrival on the scene in 2016, users would need to use a client such as
Mist
to interface with the blockchain. Now, with a few clicks, anyone using Firefox, Brave, Opera or Chrome can install MetaMask and interact directly with the blockchain from inside their browser, by injecting the web3 API, the JavaScript framework for Ethereum which allows dApps to scan the network.”
On top of facilitating access to decentralized applications, MetaMask also functions as an encrypted storage vault for Ethereum addresses. Users are able to generate multiple accounts, in which they can store Ether and ERC20-compliant tokens. It further supports various testnets (Ropsten, Kovan and Rinkeby), for experimentation with projects in beta. If users are already running a full node, they can tether the software to it.
The protocol has been praised for the simplicity in which it grants access to the infrastructure built atop the Ethereum blockchain. Evidently, it has been a popular extension, having reached its millionth download in early
February 2018
. It has clearly appealed to users who may have otherwise been dissuaded by the prospect of setting up a full node and dedicating disk space to storing the blockchain in full. Its integration with both
Truffle
and
Ganache
has further cemented MetaMask’s place in dApp development toolkits.
The devs seek to facilitate cohesion with projects in the crypto space and recognize the integral role MetaMask plays across the board: DEXs (or decentralised exchanges) are of critical importance in the shift to a fully-decentralised iteration of the web, and applications such as MetaMask are invaluable to safeguarding private keys when interacting with potentially vulnerable sites — take the recent EtherDelta
hijacking
where, despite the compromise of the site itself, data stored in MetaMask was kept safe (operating much like a hardware wallet).
In terms of competition, there are very few with similar offerings, said Moreau:
“When it comes to lightweight clients, the only other platform that springs to mind is
Cipher
, a mobile dApp browser working on iOS and Android. To call it competition, though,
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