MetaMask Monthly

Monthly updates from the MetaMask Team

Jason Lee
Jason Lee
Sep 10 · 5 min read

Introducing Web3 Permissions

We believe the blockchain ecosystem needs to fix its consent experience once and for all. The days of repeated confirmations to complete simple tasks in an application are officially numbered. Read our recent detailed article Here.

In short we’ve implemented a new permissions framework for use with a branch of MetaMask that works with a sample dapp using our new permissions API. The prototype we share here is roughly equivalent to a pre-authenticated version of OCAP-LD. It looks something like this:

We have built this permissions system so that new restricted methods can be added easily. In other words, securely extending the useful API surface of MetaMask becomes about as simple as writing the method and a clear description of it. We are actively researching which methods developers want the most.

Some possibilities we’re excited about:

If access to a permission is power, then security is the degree to which that power is limited. Consequently, the permissions system includes extensible caveat system, which enables users to adjust the permissions they grant at the time of login.


Of course, the purpose of this is to empower users and developers, and we will continue to support existing transaction behavior for those who prefer that. We want to know the permissions you want to exist, and what the API should look like. So feel free to weigh in and let us know! Again, try it all out using this branch of MetaMask and this sample dapp. If you want to dive into the technical details, you can check out the permissions module itself and our Ethereum Magicians post.

Incoming Transactions

Your wallets transaction history just became more extensive! We are glad to announce that with this new update you will be able to view incoming transactions along with outgoing transactions on MetaMask. Prior to this update only outgoing transactions were shown in history. Below is what you can expect to see.

Sign Typed Data v4 Support

Introducing Sign Typed Data v4! The method signTypedData_v4 currently represents the latest version of the EIP 712 spec, with added support for recursive types and null values. This was graciously created to support Kchannels which is an exciting new payment channel solution from the minds behind Infura!

If you didn't know The EIP712 standard is for typed message signing. This standard allows wallets to display data in signing prompts in a structured and readable format. EIP712 is a great step forward for security and usability because users will no longer need to sign off on inscrutable hexadecimal strings, which is a practice that can be confusing and insecure.

Shoutouts of the Month

Last week was BerlinBlockchainWeek ! A huge shout out to dappcon_berlin, web3summit, 1kxnetwork, meta_cartel, ETHBerlin, & Techstars, for setting such great events & kudos to those who attended & participated in workshops, panels & talks. This ecosystem thrives off of those dedicated to building.

Credit: Journalist Camila Russo for this chart


The @gnosisSafe team won one of the main bounties of ETHBerlin with Mapcovery allowing you to recover access to your account by memorizing locations from @foamspace! With this method you can recover your wallet simply and securely with 5 locations that you remember!

More Details on the project Here

Hotspot Me!

What could be a hackathons biggest nightmare? No WiFi Access… This project was actually inspired from lack of Wifi access at ETHBerlin.
This team built an app allowing an individual to become an internet provider by sharing internet data through their hotspot. In return they receive micro payments for the amount of data used. They were able to get a payment channel working smoothly that could transfer pennies with zero fee in just a couple seconds.

More Details on the project Here

Development What’s New?

MetaMask v 7.1.0 is out and auto-updating in browsers near you. Next time you pop it open, check out some of the improvements listed below. These changes are new as of this month.

In the past month…

✅ 64 PRs merged

🛠 63 commits

💫 69 Github issues closed, (47)opened

🔧 908 support tickets solved last month

💥 34,439 lines of code added and 60,184 deleted.

If you have any questions or suggestions, you can always reach out to us directly or file an issue on our Github.

Thanks for reading and stay foxy!!! 🦊

Jason & the MetaMask team


MetaMask is a bridge that allows you to visit the distributed web of tomorrow in your browser today. It allows you to run Ethereum dApps right in your browser without running a full Ethereum node.

Jason Lee

Written by

Jason Lee

Advocate for Blockchain Tech. BizDev and Community at @metamask_io and @ConsenSys



MetaMask is a bridge that allows you to visit the distributed web of tomorrow in your browser today. It allows you to run Ethereum dApps right in your browser without running a full Ethereum node.

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