Director of Engineering at Shopify, currently leading Checkout and Customer Account/Login areas
Canada
Joined March 2008
- Tweets4.9K
- Following1.2K
- Followers1.6K
- Likes3.3K
Mathieu Perreault retweeted
Shopping with agents has taken off 🚀 Are you using it?
@Shopify merchants: we've got you covered. Buyers are discovering and purchasing products through new personal agents, including @Muse and @instinct. Shop Pay now works with any merchant, right in the chat, including in @claudeai Duet, Grok @bot, and Instinct.
We've even launched shop.md/ so buyers can add the best personalized shopping experience to any agent they use.
Mathieu Perreault retweeted
Now you can integrate Shop Pay as a standalone wallet for *any* transaction, not just on purchases from Shopify stores.
Use Shop Pay on tickets, on food, and so much more.
Mathieu Perreault retweeted
Turn any existing Agent into the world's best personal shopper for you.
The new shop skill: shop.md/
Add the skill & connect your Shop account & finally find the thing that you always wanted
Mathieu Perreault retweeted
Wrote a bit about why I think WebMCP matters: blog.yoav.ws/posts/why_webmc…
Mathieu Perreault retweeted
@benjaminsehl @ItsNickLepine @clauderic_d @ustinKnight @kjellr @karreiro_ @alexandcote @gielcobben and countless others
Mathieu Perreault retweeted
@ChatGPT built-in browser speaks WebMCP and millions of @Shopify storefronts are live and ready! 🎉
That's a huge milestone and upgrade for your agent, which can now use site provided tools and efficiently explore merchant's catalog, build carts, and more.
Pumped to support @OpenAI WebMCP challenge too: openai.com/webmcp-challenge — join in on the fun!
🤫 p.s. psst, need a winning idea? Head to UCP.new to explore how you can build new shopping experiences with Shopify Global Catalog, then install UCP-cli (github.com/Shopify/ucp-cli) agent skill and let it cook.
We’re adding support for WebMCP in the ChatGPT desktop app’s built-in browser and ChatGPT Sites.
When you visit a compatible website, ChatGPT or Codex can automatically use it to complete your task.
Update to the latest version of the ChatGPT desktop app, then just ask Codex to create a WebMCP-enabled app and deploy it to Sites.
Mathieu Perreault retweeted
Universal Commerce Protocol is now live for all merchants
Teach your agent to search billions of products with Shopify Catalog, build carts, and check out with the new UCP skill
Mathieu Perreault retweeted
Signal is now warning that it could exit Canada over Bill C-22. The government has called Signal, Apple, Meta, US Congress, and cybersecurity experts all wrong. But this isn't a bluff. Canadians will lose access to secure services if the bill passes as is.
michaelgeist.ca/2026/05/bill…
Mathieu Perreault retweeted
We won't be far behind if C-22 passes. In its current state, VPNs would almost certainly require us to log identifying user data.
Signal isn't headquartered in Canada so they can just shut off Canadian servers, but our HQ is. We pay an ungodly amount of taxes to this corrupt government, and in return they want to destroy the entire essence of our service to basically spy on its own citizens.
Not happening. We'll move HQ and take our taxes elsewhere.
Signal warns it would pull out of Canada if made to comply with lawful access bill theglobeandmail.com/politics…
Mathieu Perreault retweeted
New idea for @tim_cook
Airpods "Talk Mode" feature
You both put Airpods in and it noise cancels everything but you can talk to eachother
Nice in loud environments and you could even whisper so other people can't really hear you
You can do this with Facetime of course but it's annoying, it should just be a button tap!
Would be cool if it worked with an entire friend group also
Mathieu Perreault retweeted
From a founder with zero background in fashion who shook up the industry with “radical transparency”, to building a new digital foundation on @Shopify.
@Everlane just dropped a new site — it’s stunning, 4.5x faster on Liquid than their old headless build, and makes it easier than ever for customers to discover and browse their incredible products.
Proof that brands with real values and timeless products can keep reinventing themselves to win the next generation of customers.
Welcome to everlane.com
Mathieu Perreault retweeted
The future of shopping is here, brought to you by @Shopify and @Copilot. Imagine having a perfect shopping assistant in your pocket. Shop with conversation, not clicks - you'll never go back to endless scrolling. Very excited to partner with the Shopify team. Lots more to come!
Agents will become a common way people shop. So today we are releasing 3 tools to make adding commerce to those agents trivial:
- Checkout Kit: embed commerce widgets and checkout(!) directly into your agent and chat. This is already being used by Microsoft’s @Copilot.
- Shopify Catalog: low latency global product search across millions of merchants
- Universal Cart: shop from any store, anywhere, in one cart
With these, you can build seamless embedded commerce experiences quickly, starting with all the best products by the best merchants in the world instead of having to sign them all up individually. No need to build a complex new checkout, or dealing with regulatory marketplace rules. Commerce just plugs in and feels seamless in conversations.
We believe commerce should be everywhere people are, so we’re making that as easy as possible for the AI age.
Mathieu Perreault retweeted
We're now using VS @code for web as the editor for all Shopify online stores! 🔥🔥🔥
Try it today with ?vs=1, rolling out as the default for everybody 🔜
Mathieu Perreault retweeted
Larry David and President Barack Obama are making a sketch comedy for HBO.
The network has ordered the series, which will focus on American history, and will feature cast members of 'Curb Your Enthusiasm.'
The logline: President and Mrs. Obama wanted to honor America’s 250th anniversary and celebrate the unique history of our nation on this special occasion…But then Larry David called.
It will be produced by Obama’s Higher Ground.
More details: tinyurl.com/5bmntxt8
Mathieu Perreault retweeted
We shipped an <img sizes="auto" /> polyfill so it works in browsers outside of Chromium ☺️
github.com/Shopify/autosizes @yoavweiss 👏
Mathieu Perreault retweeted
Import maps are a great way to minimize cache invalidation in your module tree. But up until recently, they had a ton of sharp edges. So we fixed them!!
Import maps and JavaScript modules are important web platform primitives for performance benefits 🐎 but not reliable at scale. So we fixed it! 🎉
Learn how in this post by @yoavweiss
shopify.engineering/resilien…
Mathieu Perreault retweeted
canada is going through a glow up 💅
@ddebow is leading the charge
macleans.ca/culture/daniel-d…
