Agentic checkout with Shop Pay ✅ Shop Pay is now available as a wallet in @Muse

Meta just launched a brand new app. Muse. Here's what matters if you're a founder: Shopify merchants are already discoverable. If your products are in Shopify Catalog and shipping to the US? You're in. Muse didn't exist yesterday. Today our merchants can already sell through it. That's the advantage of building on @Shopify in the agentic era.

I'm happy to announce that all Shopify storefronts now support UCP 2026-08. The team worked hard to get this shipped quickly. 🎉 More to come! Make sure to update the Shopify ucp-cli to v0.8.0 which now defaults to 2026-08.

Instinct shows how far LLM computer use has come but it’s still awfully slow 😴 and no one wants to share payment (or address) credentials with a 3p. 😱 Here’s a short demo of my agent, Concierge using Shopify’s UCP tools and our Shop identity tokens to directly checkout with spend controls. 👋 If you’re building in this space, let’s work together to enable seamless agentic commerce.

The best week of the year. There's no team like @Shopify. 💚

The team prepared this for me for our Shopify Summit. Actually, I only say “actually” when I say I don’t say “actually”!

"This is the biggest @ShopifyDevs opportunity right now." @igrigorik, Distinguished Engineer at Shopify, shared more about the Universal Commerce Protocol (UCP) and what's coming next during DotDev. The major moments: - UCP is a free, public, global catalogue API. Only Google, Amazon, and a few others have solved discovery at internet scale, and almost none expose it publicly. Shopify spent $100M+ over two years and made it free. "This is a picks-and-shovels moment. There's gold in that mountain." - Built with Google, launched in January. Decades of Shopify scale compressed, plus partners like Target. By April, Meta, Salesforce, Amazon, and Stripe had joined. - How UCP works. A merchant declares what it supports like cards, checkout, subscriptions, split payments, gift cards. A client or agent says "I don't speak gift cards yet, but I understand subscriptions." They negotiate the overlap and transact. - Completely open participation. A merchant can invent "fancy subscriptions" tomorrow, and any agent that speaks it can transact. It turns commerce into a market negotiation. - Modelling all of commerce is absurdly hard. It's the world's longest-running trade and always evolving, so you can't write a static spec. UCP is built around capability negotiation instead. UCP aggregates across all merchants and normalizes the permutations (one seller's size 10 is another's 9.5; blue is someone's turquoise) into coherent availability, prices, and latency. Thanks for coming on the show Ilya! We'd love to have you back. Ecomm Cowboy is live every M-F at 12P CT.

Look at what people are already building on @Shopify Catalog API: → gamers.town → bricks.stormdevs.com → essembl.com None of them are stores. They're apps. A whole new kind of entrepreneur is showing up. Tell me what you're building!

My 🌶️ take: If I was not at Shopify, I would be building atop Shopify Catalog rather than Shopify apps. Huge opportunity now that we’re enabling a revenue model via commissions and the catalog is improving weekly from multi-modal search to advanced filters and richer product information. Easier than ever to build native apps. Might do a long form post on this.

We just dropped the Spring ’26 Edition. 150+ updates. One theme. Commerce, Everywhere.