Which stores let AI agents buy?

AEON's October 21, 2026 post says the person gives a destination, dates, guests, and budget. The agent searches hotel stays on Travala and books after the person selects a stay. The agent wallet is on-chain. The person can fund it and see a record of spending. The post does not name a country, a waitlist, or which agents can use it. AEON said an earlier version already let agents shop on large online stores.

Agentcard's page calls this OpenRouter for commerce. It does not say the stores agreed to the integration, and the 5,026 count is the company's own. This is a developer endpoint, not a shop a person opens. Founder Karen posted the launch on Hacker News on October 30, 2026 (https://news.ycombinator.com/item?id=50304532).

Stripe's current documentation also names Meta as a creator. The public GitHub spec is still marked beta. ChatGPT's first in-chat Instant Checkout, which used ACP, was later narrowed.

GeekWire also reported that Amazon is suing Perplexity over its Comet browser and moving to block shopping agents from Google and OpenAI. Amazon's May 13, 2026 page states the rename from Rufus to Alexa for Shopping and describes auto-buy and Buy for Me as current features, without separate launch dates. GeekWire says Buy for Me identifies itself and lets brands opt out. On October 28, 2026 EMARKETER said an Amazon spokesperson put Shop Direct at about 250 million outside listings, roughly 2.5 times March. The article says Buy for Me can still buy eligible products on a merchant site, and does not describe Shop Direct as a checkout for outside agents. On November 6, 2026 The Verge said Alexa can take a text and a photo and order for the user, for a small U.S. group, then millions more.

Digital Commerce 360 reported the October 13, 2026 publication and said American Express confirmed there are no live integrations yet. Agent Purchase Protection is not available. American Express introduced Intent Intelligence in April 2026; this row is the later public framework, not a checkout that is already switched on. On October 28, 2026 Shopify said American Express tokens for Shop Pay agent purchases from merchants off Shopify are coming soon and are not generally available yet (https://www.shopify.com/news/fall-26-edition-merchant).

Cloudflare's October 21, 2026 post says WebMCP is still an experimental browser standard, available behind Chrome flags, in Chrome Origin Trials, in some agentic browsers, and in developer tools. Merchants can turn it off. The agent does not take payment. Eligible B2C and B2B stores also expose server-side Storefront MCPs for agents that connect from outside the browser. Commerce.com said no code changes are required (https://blog.cloudflare.com/webmcp-commerce/).

Cafe24's October 22, 2026 newsroom post says this is on for every store built with its solution, with no extra development or integration, and that it is the first Korean commerce platform to apply WebMCP. It lists 11 functions, including product search and details, options and quantity, cart changes, moving to the order form, and order lookup. It works in ChatGPT desktop's built-in browser. Chrome needs a WebMCP extension and developer settings to try it. The shopper logs in and makes the final payment. Cafe24 said WebMCP is still being discussed in a W3C community group, with Google and Microsoft taking part. The official post is in Korean. Cafe24 also said it earlier released an app in OpenAI's Apps in ChatGPT.

CNBC is reporting OpenAI's statements. This tracker did not open a matching OpenAI blog post for the March 24 change. Etsy, Instacart, Target, and Shopify still describe their own ways to buy from ChatGPT. Read those rows before assuming nothing can be purchased there. On October 22, 2026 Cafe24 said WebMCP on its stores works in ChatGPT desktop's built-in browser for search, cart, and the order form, and that the shopper logs in and pays. On October 8, 2026 Newegg said shoppers can add its app from the ChatGPT directory for a live catalog, pricing, and deals. That release does not say payment finishes inside ChatGPT.

June 15, 2026 is the date Coinbase and AWS said publishers on CloudFront could turn x402 on. Coinbase says it incubated the protocol earlier and later moved it under the Linux Foundation. This row does not state an earlier launch date. On October 20, 2026 Mastercard said Agent Pay for Machines builds on x402. In that early-access product, a service can answer with HTTP 402 and the agent signs a payment voucher inside an approved budget. Mastercard named pilots with Cloudflare, Ant International, AIsa, Base, BVNK, Coinbase, and Hype. Coinbase for Agents is a separate product. Its August 21, 2026 changelog entry says agents can trade S&P 500 U.S. stocks, which is not an x402 purchase (https://docs.cdp.coinbase.com/get-started/changelog).

Crossmint said the toolkit is live and self-serve as of October 8, 2026. It picks Shop Pay, the Universal Commerce Protocol, or browser checkout depending on the store. Cards that are not eligible for those network programs still check out from Crossmint's vault. This is a developer toolkit, not a shop a person opens directly.

Etsy's current help page says some listings can also be bought in Gemini, Google AI Mode, and Copilot, still for shoppers in the United States only. That help page does not show a last-updated date. Orders through those chats start as guest checkouts.

This is trip search with a handoff, not a verified in-chat payment. Expedia's October 6, 2025 ChatGPT app also shows live prices in chat. Meta said in September 2026 that Expedia was coming soon as a Muse travel-planning connector.

On April 28, 2026 Google donated AP2 to the FIDO Alliance and released version 0.2. FIDO is still standardizing it. Version 0.2 is not a finished FIDO standard.

The November 4, 2026 direct checkout in Canada, powered by the Universal Commerce Protocol (UCP), is rolling out, so not every shopper may see it yet. A simpler UCP setup in Merchant Center starts next year, and loyalty rewards are planned later. The Globe and Mail says the Canada launch is one item at a time (https://www.theglobeandmail.com/business/article-google-gemini-ai-shopping-instant-checkout-feature/). The October 15, 2026 post says Universal Cart in the United States names Nike, Sephora, Target, Ulta Beauty, Walmart, Wayfair, and many Shopify merchants, and the merchant remains the seller (https://blog.google/products-and-platforms/products/shopping/universal-cart-launch/). On October 8, 2026 Newegg said eligible U.S. products can be bought in AI Mode and Gemini with Google Pay.

This is Instacart's December 8, 2025 announcement, which says checkout uses the Agentic Commerce Protocol and Stripe. In March 2026 OpenAI said it was moving away from the first Instant Checkout and toward retailer apps. This tracker did not find a later Instacart notice confirming the checkout is unchanged.

The February 2, 2026 press release describes support for the standards. It does not name a public checkout where every shopper can already pay with Klarna through an agent. A Klarna business page later says payments are already live on UCP and ACP, and also says those options are being built into agent checkout.

Mastercard called the April 2025 launch its initial steps. On September 30, 2026 a score for whether an AI agent likely started a transaction was rolling out for testing in the United States, not as a finished worldwide feature. On October 8, 2026 Crossmint said its toolkit uses Mastercard Agent Pay tokenized credentials where a card supports them. On October 20, 2026 Mastercard opened Early Access to Agent Pay for Machines, built on x402, after end-to-end pilots with Cloudflare, Ant International, AIsa, Base, BVNK, Coinbase, and Hype. An agent pays for digital services with a signed payment voucher inside an approved budget. On October 28, 2026 Shopify said Shop Pay uses Mastercard tokens for some off-Shopify agent purchases (https://www.shopify.com/news/fall-26-edition-merchant).

Meta's help center says purchasing ability varies by location, merchant, and checkout, and that Muse can also pay by logging in with a saved card. At Connect on September 23, 2026 Meta said more store connectors were being added and that Expedia was coming soon for travel planning. On October 28, 2026 Shopify said Shop Pay checkout is inside Muse, the buyer stays in control, and the card is never shared with the agent (https://www.shopify.com/news/fall-26-edition-merchant). The edition page says shoppers approve purchases before they check out with Shop Pay in Muse (https://www.shopify.com/editions/fall2026).

Shopify says merchants can turn direct Copilot checkout on or off. Target separately says its own guests can buy inside Copilot and use Target Circle benefits there.

CryptoBriefing said on October 29, 2026 that Whop joined PayBox Markets and that the integration is live. Whop merchants do not change their storefronts. PayBox's post the same day says the buyer sees the item, total, payment method, and recipient before money moves. A person can require approval on every transaction or let the agent act within limits they set. PayBox says it is a product of Launchpad Limited, an unregulated MoonPay group entity, for eligible users, and not available in every jurisdiction (https://cryptobriefing.com/moonpay-whop-ai-agent-payments/).

Natural's October 29, 2026 release says Direct is available today to customers with a funded wallet. Mailed paper checks, international wires, and more are coming soon. Natural says it is not a bank. Wallet accounts and banking services are provided by Column N.A., Member FDIC.

Newegg's October 8, 2026 release says Universal Commerce Protocol checkout on Google is live now for shoppers in the United States and covers a growing selection of eligible products. The purchase happens in Google's experience, and Newegg fulfills and supports the order. The same release says Newegg was among the first retailers to enable in-conversation checkout on Perplexity, and that shoppers can add Newegg from the ChatGPT app directory for its live catalog, pricing, and deals. It does not say the ChatGPT app takes payment inside ChatGPT. Newegg also describes Celeste, its assistant on Newegg.com, as a conversation that can end in checkout.

PayPal's services page, updated October 14, 2026, says merchants must request access. Store Sync is limited to physical goods sold to U.S. customers in U.S. dollars. Agent Ready's integration guide was updated October 13, 2026.

The September 15, 2026 availability list says the Google catalog feed is generally available now and UCP checkout is "GA October 2026." Salesforce's developer guide says the integration is generally available in B2C Commerce 26.9 and later, for en-US sites only, and that merchants still join Google's UCP waitlist before Google checkout (https://developer.salesforce.com/docs/commerce/b2c-commerce/guide/ucp-index.html). The innovations page still labels it "GA Oct '26," not "GA Now" (https://www.salesforce.com/commerce/innovations/).

The Paypers reported this launch on November 6, 2026 and said Sardine is seeking design partners among agent developers and merchants. Neither source names merchants that have adopted KYH. Sardine says the protocol complements existing agentic commerce protocols. An agent can bind a device with Sardine's SDK or a merchant Method URL. A texted verification link expires five minutes after it is created and can be opened up to three times. Sardine's page calls email, phone, and KYC possible extensions. The Paypers lists email and phone among the identifiers and calls KYC an extended case (https://thepaypers.com/fraud-and-fincrime/news/sardine-launches-know-your-human-protocol-for-agentic-commerce).

Claude Duet, Grok Bot, and Instinct also offer Shop Pay for brands not on Shopify. For those purchases, Shop Pay uses tokens from Mastercard, Visa, and Discover. American Express tokens are coming soon and are not generally available yet. The buyer stays in control, and the card is never shared with the agent. The edition page also lists Grok Bot for Shop Pay checkout, and a Catalog API commission for agent builders is early access, not generally live (https://www.shopify.com/editions/fall2026). A browser agent on a Liquid or Hydrogen store can finish checkout once the buyer approves (https://www.shopify.com/news/fall-26-edition-developer). October 27: a Catalog beta can list non-Shopify brands that cannot be bought in Shopify checkout, and in the beta only US shoppers see them.

This balance is launching first in Instinct and rolling out to Instinct users in eligible US regions, with New York coming soon. Link's undated help page says US shoppers who use an agent can fund a USDC balance so an agent can complete some purchases without approval (https://support.link.com/questions/link-balance-faq). The shopper sets a per-purchase cap; above it, approval is still required (https://support.link.com/questions/set-up-a-balance-for-agent-wallet-purchases). Stripe's September 8, 2026 post covers connecting Link to Muse. The wallet also powers Grok Bot and Instinct (https://stripe.com/newsroom/news/stripe-helps-meta-muse-shop-with-link). Not every Stripe merchant accepts agent checkout. On October 21, 2026 Claude Duet can pay with Link after approval via a virtual card.

The Paypers report on November 4, 2026 says the card has launched and is certified for Mastercard Agent Pay. It does not name a public signup page or which companies can apply. It describes company-approved agents making business payments, not a consumer checkout. Online travel agencies are named as an early use, not as a list of live customers.

Synchrony's October 15, 2026 post says the pilots are with selected merchant partners, and that Synchrony is contributing to UCP and AP2. It does not describe a general checkout where an agent already charges a Synchrony account. A later phase would explore offering a card to someone who does not already have one.

On Google, Target said buying several items in one purchase was still coming soon. The shopper still confirms the purchase. Google checkout described here ships in the U.S.

Shoplazza's October 19, 2026 release says TikTok introduced Buy Direct and Shopping Assistant on October 5 and named Shoplazza as a commerce and payment partner. It does not say which countries or which shoppers can use Buy Direct. Shopping Assistant answers product questions inside TikTok's browser, then checkout still happens on the merchant's website.

A protocol release and a shopper-facing buy button are different things. The spec can be live while a particular store's checkout is still a pilot. On October 16, 2026 Shopify said Checkout MCP and Cart MCP support the UCP buyer-consent extension from version 2026-08-25. On October 8, 2026 Newegg said U.S. shoppers can buy eligible products in AI Mode and Gemini with Google Pay. The Shop MCP skill linked from Shopify's October 13, 2026 changelog tells agents to prefer Shop/UCP checkout when it is available. On October 19, 2026 Shoplazza said TikTok Buy Direct uses UCP to connect with merchant systems, and that the brand remains the seller. On October 15, 2026 Google said Universal Cart, powered by UCP, was rolling out in the U.S. in Search and the Gemini app.

Visa first introduced Intelligent Commerce on April 30, 2025 as a partner program. The April 2026 Connect on-ramp is a pilot with partners including Aldar, AWS, Diddo, Highnote, Mesh, Payabli, and Sumvin. On October 8, 2026 Crossmint said its toolkit uses Visa tokenized credentials where a card supports them. On October 20, 2026 a BILL and Billtrust pilot lets a trusted agent pay supplier invoices the buyer already approved. On October 28, 2026 Shopify said Shop Pay uses Visa tokens for some off-Shopify agent purchases (https://www.shopify.com/news/fall-26-edition-merchant). On November 5, 2026 Visa launched the Visa Agentic Commerce Benchmark, research it says is complementary to Intelligent Commerce, not the same product, and public on Visa Payments Frontier.

Not yet live for shoppers. Agent Profiles launch in the next month, and the Walmart Agent Gateway starts as a beta for companies and developers. Agents do not receive payment-card data and cannot change payment methods. Reuters said the gateway lets ChatGPT, Gemini, and Meta's Muse connect to Walmart and Sam's Club, and contrasted that with Amazon limiting outside agents (https://www.investing.com/news/stock-market-news/walmart-launches-tools-for-ai-agents-to-shop-for-customers-4964210). Google's October 15, 2026 Universal Cart post names Walmart among UCP checkout merchants. Earlier steps include a January 2026 Gemini plan, a March 2026 ChatGPT app, and Sparky in the Walmart app since June 2025.

CryptoBriefing said the October 29, 2026 integration is live and that Whop merchants do not change their storefronts. PayBox says the buyer can require approval on every transaction or allow the agent to act within limits set in advance, and that this is for eligible users and not every jurisdiction (https://x.com/PayBox/status/2115820823327936940).

Zalando's November 3, 2026 release calls this Zalando Extended. Agent checkout is planned for 2027 and is not available now. Westwing is the first pilot partner, and that cooperation started in 2026. The same release says more than 22 million unique users visited the Zalando Assistant this year. It does not say that assistant already checks out at other shops.