On June 17, 2026, Shopify shipped its Spring '26 Edition. Beyond the 150+ updates, the core message: agentic commerce goes self-serve. UCP and the Catalog API, previously gated by approval, are now open to any developer.
UCP and Catalog API, self-serve
Building on Shopify's agentic commerce layer no longer requires approval. A developer registers an agent profile in the Developer Dashboard and calls Shopify's public MCP endpoint — from product search to checkout. Two tools support the move: the UCP Skill (part of the open-source AI Toolkit, now GA), which lets an agent introspect available operations on its own, and the UCP CLI. Documentation lives at shopify.dev/agents.
Shopify notes that UCP — which it co-developed with Google — has broad support: Amazon, Meta, Microsoft, Salesforce, Stripe, Etsy, Target and Wayfair are cited alongside the founders.
Catalog API: UCP's discovery layer
The Catalog API turns Shopify's global catalog into infrastructure agents can query. Eligible products from Shopify merchants are in it by default, syndicated to ChatGPT, Copilot and the Shop app. New this Edition:
- Image search and multimodal search (text + image) across the catalog.
- A lookup endpoint that resolves a list of product URLs into real matches.
- Richer metadata (size, color, delivery estimates) to present products with more context.
- Support for Sign in with Shop: a signed-in shopper carries their details into experiences built on top.
The headline argument for merchants: AI searches powered by Catalog convert at 2× the rate of those built on scraped data. Clean, structured data means products show up complete and current at the moment of purchase.
Agentic Storefronts in the Admin
On the merchant side, AI channels are now managed from one place in the Shopify Admin. The merchant decides where to show up (product discovery via Catalog, direct checkout), tracks sales by channel — ChatGPT, Copilot, Google Search AI Mode, the Gemini app, Shop — and uses search intelligence to spot the AI queries in its category where it doesn't yet rank. When a product surfaces in an AI conversation but doesn't convert, Sidekick suggests what to fix (specs in titles, descriptions, missing attributes).
Shopify cites two merchant results: bedding brand Cozy Earth (revenue from AI channels up 20× year over year) and Omnilux (3.2% of total revenue from AI channels in March 2026).
Sidekick, the Claude connector and marketing
- Sidekick App Extensions: third-party apps plug into Sidekick (15+ partners at launch, including Klaviyo, Loop, Smile). Merchants query their tools and act without leaving the conversation.
- Claude connector: Shopify integrates third-party AI agents (including Anthropic's Claude) into store operations.
- Marketing: Shop Campaigns extends to ChatGPT, Pinterest and open-web advertising via Microsoft Monetize; Campaign Autopilot automates campaigns; Shop Pay opens to brands not on Shopify (250M+ shoppers).
What it changes for a merchant
Three consequences: (1) the technical barrier falls — any developer can build an agentic experience across Shopify merchants, so more surfaces where your products can appear; (2) product-data quality becomes the central asset again, because it feeds Catalog, checkout and insights alike; (3) managing AI channels moves into the everyday Admin, on a par with online sales.
Sources
- Shopify, "Agentic commerce for every developer: The Spring '26 Edition", June 17, 2026
- Shopify, "Selling everything, everywhere, all at once: The Spring '26 Edition", June 17, 2026