# ACP: Which Merchants Really Use It (2026) > The named inventory of merchants on ACP: live checkout, discovery only, announced but unproven. Dated sources, and why the real list is so short. - Canonical HTML: https://verityscore.io/en/kb/acp-agentic-commerce-protocol/ - Markdown alternate: https://verityscore.io/en/kb/acp-agentic-commerce-protocol.md - Language: en - Content type: kb - Published: 2026-03-24 - Updated: 2026-07-23 - Tags: acp, agentic-commerce, chatgpt-shopping, stripe, shopify - Audit zone: ACP ## What Is the Agentic Commerce Protocol (ACP)? **Update, July 23, 2026.** On March 24, 2026, OpenAI ended Instant Checkout, the product that carried ACP checkout inside ChatGPT. OpenAI's own explanation: the initial version did not offer the level of flexibility it wanted, so merchants now use their own checkout experiences while OpenAI focuses on product discovery ([OpenAI, March 24, 2026](https://openai.com/index/powering-product-discovery-in-chatgpt/)). ACP itself did not stop. It changed jobs, from checkout to discovery. Anything you read that still describes ACP as "the checkout inside ChatGPT" predates that change.
ACP (Agentic Commerce Protocol) workflow: 4 capabilities (Discovery, Cart, Checkout, Post-Purchase) with ACP OpenAI/Stripe vs UCP Google/Shopify comparison
Figure 1 - The 4 ACP protocol capabilities and comparison with UCP
The Agentic Commerce Protocol (ACP) is a protocol co-developed by OpenAI and Stripe, announced in September 2025 alongside Instant Checkout ([OpenAI, September 29, 2025](https://openai.com/index/buy-it-in-chatgpt/)). It is the technical layer that connects merchant data to ChatGPT: product feeds, promotions, availability, attributes. Until March 2026 it also carried an in-conversation checkout. Since then, its job in ChatGPT is product discovery, and the purchase completes on the merchant's own store. ## Which Merchants Actually Use ACP This is the question most pages about ACP avoid, because the honest answer is uncomfortable: the list of merchants that ever completed a purchase through ACP is very short, and none of it is running today. What circulates instead is a merged list of twenty or so logos that blends three very different things: merchants that had a live ACP checkout, merchants that only feed product discovery, and merchants that were named in a press release and never confirmed afterwards. Below, those three categories stay separate. ### Category A: merchants with a demonstrable ACP checkout (all stopped) | Merchant | ACP checkout | Status in July 2026 | Source | |---|---|---|---| | Etsy sellers, United States only | Live September 29, 2025 | Stopped with Instant Checkout | [OpenAI, September 29, 2025](https://openai.com/index/buy-it-in-chatgpt/) | | Shopify merchants, never named: around 30 according to Forrester analyst Emily Pfeiffer, around a dozen according to Shopify president Harley Finkelstein | Opened January 26, 2026 | Stopped with Instant Checkout | [CNBC, March 20, 2026](https://www.cnbc.com/2026/03/20/open-ai-agentic-shopping-etsy-shopify-walmart-amazon.html) and [Forbes, March 10, 2026](https://www.forbes.com/sites/jasongoldberg/2026/03/10/why-openais-checkout-retreat-spells-trouble-for-its-commerce-strategy/) | | Walmart, around 200,000 products | Announced October 14, 2025 | Instant Checkout stopped. Walmart now runs an in-ChatGPT app with account linking, loyalty and Walmart payments | [CNBC, October 14, 2025](https://www.cnbc.com/2025/10/14/walmart-openai-chatgpt-shopping.html) and [OpenAI, March 24, 2026](https://openai.com/index/powering-product-discovery-in-chatgpt/) | That is the whole category. Two named merchants, plus a group of Shopify merchants that was never disclosed and whose size is only known through two conflicting estimates. ### Category B: ACP for product discovery only (the only solid named list today) | Merchant or platform | ACP role | Where the purchase happens | Source | |---|---|---|---| | Target, Sephora, Nordstrom, Lowe's, Best Buy, The Home Depot, Wayfair | Integrated into ACP for discovery, confirmed by OpenAI | On the retailer's own site | [OpenAI, March 24, 2026](https://openai.com/index/powering-product-discovery-in-chatgpt/) | | Shopify merchants, through Shopify Catalog | Product data already integrated into ChatGPT, no extra work required from individual merchants | On the merchant's own store checkout, in a ChatGPT in-app browser or a new tab | [OpenAI, March 24, 2026](https://openai.com/index/powering-product-discovery-in-chatgpt/) and [Shopify Help Center](https://help.shopify.com/en/manual/online-sales-channels/agentic-storefronts) | This is the list to use if someone asks you for real ACP examples in 2026. It is short, it is named, and it comes from a primary source. ### Category C: announced, with no proven deployment | Names | What was actually announced | Date | Source | |---|---|---|---| | Glossier, SKIMS, Spanx, Vuori | Named in a single "coming soon" sentence about Shopify merchants. No individual live confirmation was ever published | September 29, 2025 | [OpenAI](https://openai.com/index/buy-it-in-chatgpt/) | | URBN (Anthropologie, Free People, Urban Outfitters), Coach, Kate Spade, Revolve, Ashley Furniture, Halara, Abt Electronics, Nectar | Described by Stripe as already onboarding onto its Agentic Commerce Suite. None has been shown running a live ACP checkout | December 11, 2025 | [Stripe](https://stripe.com/blog/agentic-commerce-suite) | | Wix, WooCommerce, BigCommerce, Squarespace, commercetools | Platforms that support ACP through Stripe. These are platforms, not merchants | December 11, 2025 | [Stripe](https://stripe.com/blog/agentic-commerce-suite) | | PayPal | Adoption of ACP announced, with an ACP server planned for 2026 | October 28, 2025 | [PayPal](https://newsroom.paypal-corp.com/2025-10-28-OpenAI-and-PayPal-Team-Up-to-Power-Instant-Checkout-and-Agentic-Commerce-in-ChatGPT) | Category C is where most published ACP merchant lists come from. A brand named in a launch post is a commercial intention, not a deployment. Treat "onboarding" and "coming soon" as what they are. ### How to read the three categories - Category A answers "who sold through ACP". Answer: almost nobody, and nobody today. - Category B answers "whose products ACP carries into ChatGPT". Answer: seven named US retailers plus the Shopify merchant base. - Category C answers "who said they would". Answer: a lot of brands, with no follow-up evidence. If a page hands you a single list of twenty logos, it has merged the three. ## Why the List Is So Short Three documented reasons, all from the same reporting on the March 2026 retreat. 1. **Onboarding was heavy and the product was unreliable.** Forrester analyst Emily Pfeiffer describes a laborious merchant onboarding process and an Instant Checkout that was prone to errors, with limited product selection six months after launch ([CNBC, March 20, 2026](https://www.cnbc.com/2026/03/20/open-ai-agentic-shopping-etsy-shopify-walmart-amazon.html)). 2. **Buying inside the chat converted worse than a redirect.** Walmart measured a conversion rate three times lower when customers bought directly inside ChatGPT than when they were sent to Walmart's own site. Those figures were first reported by Wired and relayed by CNBC ([CNBC, March 20, 2026](https://www.cnbc.com/2026/03/20/open-ai-agentic-shopping-etsy-shopify-walmart-amazon.html)). 3. **Volume never materialized.** Etsy reported a relatively low purchase volume and characterized the technology as still nascent ([CNBC, March 20, 2026](https://www.cnbc.com/2026/03/20/open-ai-agentic-shopping-etsy-shopify-walmart-amazon.html)). None of this means AI shopping is small. A March 2026 Semrush survey of more than 1,000 US consumers, relayed by CNBC, found that 22% had already bought a product inside an AI tool. The gap is between buying because of an AI tool and buying inside the chat window through ACP. The first is growing. The second stopped. ## What the ChatGPT Checkout Cost Merchants In January 2026, Shopify confirmed to The Information that its merchants would pay 4% to OpenAI on sales made through the ChatGPT checkout, on top of Shopify fees. OpenAI never published that rate. The checkout in question stopped roughly six weeks later ([The Information, January 21, 2026](https://www.theinformation.com/briefings/chatgpt-checkouts-take-4-cut-shopify-merchant-sales), corroborated by [PYMNTS, January 21, 2026](https://www.pymnts.com/news/ecommerce/2026/shopify-merchants-to-pay-4percent-fee-on-sales-made-through-chatgpt-checkout/)). Two limits matter. That rate concerned Shopify merchants only: the terms agreed with Etsy and Walmart were never made public, and OpenAI declined to disclose additional financial details ([CNBC, March 20, 2026](https://www.cnbc.com/2026/03/20/open-ai-agentic-shopping-etsy-shopify-walmart-amazon.html)). And the current Shopify documentation on agentic storefronts mentions no additional ChatGPT fee, since the payment now happens on the merchant's own store ([Shopify Help Center](https://help.shopify.com/en/manual/online-sales-channels/agentic-storefronts)). ## Two Different Things Are Called ACP A naming trap worth flagging before you search further. This page covers the **Agentic Commerce Protocol**. The **Agent Client Protocol**, also abbreviated ACP, is an unrelated standard that connects AI agents to editors and command-line tools; GitHub Copilot CLI has supported it since January 2026 ([GitHub Changelog, January 28, 2026](https://github.blog/changelog/2026-01-28-acp-support-in-copilot-cli-is-now-in-public-preview/)). If a result talks about IDE sessions and stdio transport, it has nothing to do with commerce. ## How ACP Works Today Since March 2026, the ChatGPT journey looks like this: ``` User: "I'm looking for a 30L waterproof hiking backpack" | v [1] ChatGPT interprets the purchase intent | v [2] ACP carries merchant feeds and product data (Discovery) | v [3] Products are compared side by side: price, reviews, features | v [4] The user picks an option | v [5] Checkout on the merchant's own store, in a ChatGPT in-app browser ``` ### The 4 ACP Capabilities The specification still defines four capabilities. What changed in March 2026 is the product, not the protocol. 1. **Discovery** - The agent reads your catalog, your product pages and your feeds, and filters on attributes (size, color, price, availability). This is where ACP is actually deployed today. 2. **Cart** - The agent can assemble a cart, manage variants and apply promotions where the integration supports it. 3. **Checkout** - Still specified, no longer used inside ChatGPT. Since March 24, 2026, the buyer completes the purchase on the merchant's own checkout ([OpenAI](https://openai.com/index/powering-product-discovery-in-chatgpt/)). Other AI channels handle this differently, which is why the ACP versus UCP comparison below matters. 4. **Post-Purchase** - Order tracking, shipping information and returns are covered by the orders part of the specification. We have found no published deployment data for this capability. ### Specification Status The specification is hosted at [github.com/agentic-commerce-protocol](https://github.com/agentic-commerce-protocol/agentic-commerce-protocol), maintained by OpenAI and Stripe, published under Apache 2.0, and still labelled beta. The last stable version is **2026-04-17** and covers cart, feed, orders, authentication and MCP. Earlier versions: 2025-09-29, 2025-12-12, 2026-01-16, 2026-01-30. A move to a neutral foundation has been announced, without a date. ### Why ACP Still Matters Before ACP, every AI platform built its own merchant integrations: fragmentation, slow adoption, uneven experience. ACP standardizes [agentic commerce](/en/glossary/#agentic-commerce) the way **HTTP standardized the web** ([Shopify, 2026](https://www.shopify.com/blog/agentic-commerce)). The March 2026 retreat narrowed what the protocol does in ChatGPT, it did not remove the standardization. Merchant data quality is now the deciding factor for whether your products appear in a side-by-side comparison, which is exactly what OpenAI describes in its March 2026 announcement. ## ACP vs UCP: What Is the Difference? | Criteria | ACP | UCP | |----------|-----|-----| | **Creators** | OpenAI + Stripe | Google + Shopify | | **Launch date** | September 2025 | March 2026 | | **Compatible agents** | ChatGPT, custom GPTs, OpenAI assistants | Google AI Mode, Gemini, third-party agents | | **Technical protocol** | REST endpoints for cart, feed and orders, plus authentication and MCP (spec 2026-04-17) | REST + MCP + Agent-to-Agent (A2A) | | **Payment** | The merchant's own processor, since the purchase completes on the merchant store | Flexible (Shopify Payments, PayPal, etc.) depending on surface | | **Discovery** | Merchant feeds and promotions, product data, schema.org, accessible pages | Storefront Catalog MCP `/api/ucp/mcp` + schema.org/feeds | | **Checkout** | None inside ChatGPT since March 24, 2026. Buyer finishes on the merchant store | Direct checkout inside the channel when the merchant has it activated | | **Open source** | Yes, Apache 2.0, spec public on GitHub, beta status | Yes (full public specification) | One geographic point often missed: Instant Checkout launched for US users buying from US Etsy sellers, and stopped before any announced expansion ([OpenAI, September 29, 2025](https://openai.com/index/buy-it-in-chatgpt/)). The retailers integrated with ACP for discovery are US chains. ### Which One Should You Choose? Both, but for different reasons than in 2025. ACP connects you to ChatGPT product discovery. UCP connects you to the Google ecosystem (AI Mode, Gemini) where a direct in-channel checkout can still exist depending on your setup. The technical prerequisites overlap heavily: complete product data, coherent prices, real availability, accessible pages. Working on those serves both, whatever each platform decides to do with checkout next. ## How to Get Your Shopify Store Ready The work is no longer about switching on a checkout. It is about being correctly represented in discovery, and being easy to buy from once the shopper lands on your store. ### Step 1: Check How Your Store Is Exposed to AI Channels **Exact path**: Shopify admin, then **Sales channels**, then **Agentic**. According to [Shopify documentation](https://help.shopify.com/en/manual/online-sales-channels/agentic-storefronts), agentic storefronts are active by default for eligible stores, and products reach AI channels through Shopify Catalog. For ChatGPT specifically, Shopify describes it as a discovery-focused referrer: the shopper completes the purchase on your own store checkout, in a ChatGPT in-app browser or in a new tab. Orders show up in your admin with channel or referrer attribution. ### Step 2: Make Sure Your Checkout Survives an In-App Browser Since the purchase happens on your store, inside an embedded browser, the usual friction points become AI commerce problems: an interstitial popup, a cookie wall that blocks the page, a login requirement, a slow first render. Test your product page and checkout in an embedded browser context, not just in your desktop Chrome. ### Step 3: Verify Your schema.org Product Product data is what discovery consumes. Each product page should contain at minimum: - `@type: Product` with `name`, `description`, `image`, `sku` - `offers` with `price`, `priceCurrency`, `availability`, `url` - `brand` with `name` - `aggregateRating` if you have reviews (strongly recommended) - `shippingDetails` with delivery time and cost - `hasMerchantReturnPolicy` with return policy details On Shopify, most modern themes generate basic schema.org Product markup. But `shippingDetails` and `hasMerchantReturnPolicy` are often missing, and need to be added manually or via an app. ### Step 4: Ensure Price Consistency Products are shown side by side with price, reviews and features. Any inconsistency between your sources creates a distrust signal: - The price in your schema.org `offers.price` must exactly match the price displayed on the page - Strikethrough prices (`compareAtPrice`) must be higher than the current price - The currency (`priceCurrency`) must match your target market (EUR for France, GBP for the UK) - OG prices (`og:price:amount`) must be synchronized with schema.org ### Step 5: Verify Real-Time Availability An AI assistant recommending an out-of-stock product destroys trust immediately. Make sure: - Shopify inventory is synced in real time (no update delay greater than 15 minutes) - The schema.org `availability` field reflects actual stock (`InStock`, `OutOfStock`, `PreOrder`) - Sold-out variants are correctly marked ## The 5 ACP Readiness Criteria ### 1. Product Discovery (Complete Schema) The agent must understand your products unambiguously. This requires a complete schema.org Product with all fields listed in Step 3. Incomplete product data limits what ChatGPT can put in a side-by-side comparison, which is where the decision now happens. ### 2. Price Accuracy (Consistent Prices) Displayed price, schema.org price and OG price should be identical. A divergence between your own sources is the easiest signal to detect and the hardest to defend. ### 3. Checkout Handoff Quality (Post-Click Experience) Since the purchase completes on your store, the handoff is the conversion moment: a checkout that works in an embedded browser, a structured return policy in schema.org, visible delivery terms. Without `hasMerchantReturnPolicy`, an assistant cannot state your return conditions before the shopper leaves the conversation. ### 4. Fulfillment Info (Structured Shipping) Delivery time and cost should be readable before the click. The schema.org `shippingDetails` field is the machine-readable version of that. Include at minimum: shipping zone, estimated time, standard cost, express cost. ### 5. Trust Signals (Reviews and Certifications) Reviews (`aggregateRating`), certifications (organic, vegan, etc.), years in business and order volume are the signals a shopper compares across the options presented. The more structured they are, the more likely they are to be carried into the comparison rather than lost in page copy. ## How Verity Score Measures Your ACP Readiness Verity Score automatically audits your ACP compatibility and assigns an **ACP Readiness score out of 100**, broken down into 5 dimensions: | Dimension | Weight | What Is Checked | |-----------|--------|-----------------| | Schema completeness | 30% | Number of schema.org Product fields filled, presence of critical fields | | Price coherence | 20% | Consistency between schema price / displayed price / OG price / compareAtPrice | | Checkout readiness | 20% | Checkout detection, structured return policy | | Fulfillment data | 15% | Presence of shippingDetails, structured delivery time and cost | | Trust signals | 15% | AggregateRating, review count, detected certifications | ### Score Interpretation - **80-100**: your product data is ready for AI discovery. - **60-79**: usable but with gaps. Some comparisons may skip you in favor of better-structured competitors. - **40-59**: not ready. Major corrections needed on schema.org and product data coherence. - **0-39**: an AI assistant cannot reliably describe your products. A readiness score is a proxy: catalog quality, structured data, policies, availability, pricing, feeds and OpenAI crawler access. It is not an eligibility verdict, and Verity Score does not claim to grant or deny access to any program. ## Merchant Checklist: 8 Actions 1. **Check your Agentic sales channel** - Admin, then Sales channels, then Agentic. Confirm which AI channels your products are exposed to. 2. **Test your product page in an embedded browser** - This is where ChatGPT shoppers land. Popups, cookie walls and slow renders cost you the sale after discovery worked. 3. **Enrich schema.org Product** - Verify each product page contains: name, description, image, sku, brand, offers (price, currency, availability), aggregateRating. Use an app like JSON-LD for SEO or Smart SEO if your theme does not generate them natively. 4. **Add shippingDetails to schema** - Integrate shipping information into schema.org: zone, delivery time, cost. On Shopify, this typically requires a Liquid theme modification or a dedicated app. 5. **Add hasMerchantReturnPolicy** - Structure your return policy in schema.org with: return type (refund, exchange), timeframe (14, 30 days), conditions. Link it to your return policy page. 6. **Synchronize prices** - Verify that schema.org price = displayed price = og:price:amount. Watch currencies: a French store must use EUR, not USD. 7. **Verify real-time inventory** - Admin, then Products, then Inventory. Enable inventory tracking for each product. Verify that sold-out variants automatically switch to `OutOfStock` in schema. 8. **Run a Verity Score audit** - Enter your store URL and get your ACP Readiness score. Fix the identified gaps and re-run the audit to validate. ### Correction Priorities If your score is below 60, focus in this order: 1. Basic schema.org Product (name, price, availability) - immediate impact 2. Post-click experience in an embedded browser - where the sale is now won or lost 3. ShippingDetails + ReturnPolicy - strong differentiator 4. AggregateRating - comparison fuel 5. Cross-source price consistency - avoids distrust signals ## Related articles - [GEO Audit: Complete Guide](/en/kb/geo-audit/) - The 9 factors that determine your AI visibility - [Sell on ChatGPT](/en/kb/sell-on-chatgpt-shopify/) - Agentic Storefronts and Shopify optimization for ChatGPT Shopping - [UCP: Universal Commerce Protocol](/en/kb/ucp-universal-commerce-protocol/) - The Google + Shopify protocol for AI agents - [Perplexity Shopping](/en/kb/perplexity-shopping/) - Merchant guide and readiness score - [Schema.org for Shopify](/en/kb/schema-org/) - Technical guide to Product and Offer structured data - [Pricing and AI Visibility](/en/kb/pricing-ai-visibility/) - How agents compare your prices and promotions - [Shipping & Returns](/en/kb/shipping-returns/) - Critical trust signals for AI agents - [Robots.txt and AI Crawlers](/en/kb/robots-crawlers/) - Configure access for GPTBot, ClaudeBot and PerplexityBot - [AI Buyer Score](/en/kb/ai-buyer-score/) - How AI agents evaluate and rank your products --- **Ready to check your store?** [Run a free GEO audit →](https://verityscore.io) The short version: ACP is alive, its checkout is not, and the merchant list that matters in 2026 is a discovery list. Work on the product data that feeds that list, and on the store experience that receives the click. ## FAQ ### Which merchants actually use ACP? Three separate answers. Merchants with a demonstrable ACP checkout: US Etsy sellers (September 2025), Walmart (announced October 2025), and a few dozen unnamed Shopify merchants (January 2026). All of it stopped when OpenAI ended Instant Checkout in March 2026. Merchants using ACP for discovery only: Target, Sephora, Nordstrom, Lowe's, Best Buy, The Home Depot, Wayfair, plus Shopify merchants through Shopify Catalog. Merchants that were only announced: Glossier, SKIMS, Spanx, Vuori, URBN, Coach, Kate Spade, Revolve and others, with no published proof of a live ACP checkout. ### Did OpenAI abandon ACP? No. OpenAI ended Instant Checkout, the product that completed purchases inside ChatGPT. The protocol itself is still maintained by OpenAI and Stripe, and OpenAI extended it to product discovery on March 24, 2026. The confusion comes from the fact that ACP and Instant Checkout were announced together in September 2025. ### What is the Agentic Commerce Protocol (ACP)? ACP is a protocol co-developed by OpenAI and Stripe, published under Apache 2.0 and still labelled beta. It connects merchant data to ChatGPT: product feeds, promotions, availability, and, until March 2026, an in-conversation checkout. Since March 2026 its job in ChatGPT is product discovery. ### Is ACP the same thing as the Agent Client Protocol? No, and this is a common mix-up. The Agentic Commerce Protocol covers commerce. The Agent Client Protocol, also abbreviated ACP, connects AI agents to editors and command-line tools, and has been supported by GitHub Copilot CLI since January 2026. If a page mentions IDE integrations, it is not about commerce. ### Do I need Stripe to sell through ChatGPT? Not since March 2026. The purchase now completes on your own store, so the payment processor involved is the one you already use. Stripe co-maintains the ACP specification with OpenAI and offers a commercial integration path, but it is not a condition for appearing in ChatGPT product discovery. ### How much did the ChatGPT checkout cost merchants? In January 2026, Shopify confirmed to The Information that its merchants would pay OpenAI 4% on sales made through the ChatGPT checkout, on top of Shopify fees. OpenAI never published that rate, and the checkout in question stopped roughly six weeks later. The rate applied to Shopify merchants only. Etsy and Walmart terms were never made public. ### Is ACP available in Europe? The ACP checkout program launched in the United States only, in September 2025, and stopped in March 2026 without an announced expansion. The retailers integrated with ACP for product discovery are US chains. ChatGPT can show products to users elsewhere, but that is not the same as an ACP integration. ### What is the difference between ACP and UCP? ACP is maintained by OpenAI and Stripe and feeds ChatGPT. UCP is backed by Google and Shopify and feeds Google AI Mode and Gemini. Since March 2026 the practical difference is checkout: in ChatGPT the buyer finishes on the merchant store, while other AI channels can offer a direct checkout inside the channel depending on the integration. ### How do I know if my Shopify store is exposed to AI channels? In your Shopify admin, go to Sales channels then Agentic. According to Shopify documentation, agentic storefronts are active by default for eligible stores, and ChatGPT acts as a discovery-focused referrer: the buyer completes the purchase on your own store checkout. Verity Score audits the observable readiness signals behind that exposure. ### Is the Verity Score ACP audit free? Yes. The Verity Score public audit analyzes your ACP readiness for free, including schema.org verification, price coherence, and real-time availability checks. No installation required. ## Sources - [Powering Product Discovery in ChatGPT (OpenAI, March 24, 2026)](https://openai.com/index/powering-product-discovery-in-chatgpt/) (official) - [Buy it in ChatGPT: Instant Checkout and the Agentic Commerce Protocol (OpenAI, September 29, 2025)](https://openai.com/index/buy-it-in-chatgpt/) (official) - [OpenAI's first try at agentic shopping stumbled. It's trying again (CNBC, March 20, 2026)](https://www.cnbc.com/2026/03/20/open-ai-agentic-shopping-etsy-shopify-walmart-amazon.html) (industry) - [Why OpenAI's Checkout Retreat Spells Trouble For Its Commerce Strategy (Forbes, March 10, 2026)](https://www.forbes.com/sites/jasongoldberg/2026/03/10/why-openais-checkout-retreat-spells-trouble-for-its-commerce-strategy/) (industry) - [Walmart teams up with OpenAI to allow purchases in ChatGPT (CNBC, October 14, 2025)](https://www.cnbc.com/2025/10/14/walmart-openai-chatgpt-shopping.html) (industry) - [Introducing the Agentic Commerce Suite (Stripe, December 11, 2025)](https://stripe.com/blog/agentic-commerce-suite) (official) - [Shopify agentic storefronts (Shopify Help Center, 2026)](https://help.shopify.com/en/manual/online-sales-channels/agentic-storefronts) (official) - [OpenAI and PayPal Team Up to Power Instant Checkout and Agentic Commerce in ChatGPT (PayPal, October 28, 2025)](https://newsroom.paypal-corp.com/2025-10-28-OpenAI-and-PayPal-Team-Up-to-Power-Instant-Checkout-and-Agentic-Commerce-in-ChatGPT) (official) - [ChatGPT Checkouts to Take 4% Cut of Shopify Merchant Sales (The Information, January 21, 2026)](https://www.theinformation.com/briefings/chatgpt-checkouts-take-4-cut-shopify-merchant-sales) (industry) - [Shopify Merchants to Pay 4% Fee on ChatGPT Checkout Sales (PYMNTS, January 21, 2026)](https://www.pymnts.com/news/ecommerce/2026/shopify-merchants-to-pay-4percent-fee-on-sales-made-through-chatgpt-checkout/) (industry) - [Agentic Commerce Protocol specification (GitHub, maintained by OpenAI and Stripe)](https://github.com/agentic-commerce-protocol/agentic-commerce-protocol) (official) - [ACP support in Copilot CLI is now in public preview (GitHub Changelog, January 28, 2026)](https://github.blog/changelog/2026-01-28-acp-support-in-copilot-cli-is-now-in-public-preview/) (official) - [Shopify Agentic Commerce Blog](https://www.shopify.com/blog/agentic-commerce) (official) - [Perplexity Shopping: How to Optimize Your Store for AI (2026)](https://www.shopify.com/blog/perplexity-shopping) (official)