ChatGPT Instant Checkout Is Live: What Retailers Need to Do This Week (February 2026)

On February 16, 2026, OpenAI launched "Buy it in ChatGPT" -- an Instant Checkout feature that lets U.S. ChatGPT Plus, Pro, and Free users purchase products directly inside the chat interface. The feature is powered by the Agentic Commerce Protocol (ACP), a new open standard codeveloped by Stripe and OpenAI. Etsy sellers are live today, over 1 million Shopify merchants (including Glossier, SKIMS, Spanx, and Vuori) are coming soon, and PayPal's ACP server will bring tens of millions of additional small businesses onto the platform in 2026. With 800-900 million weekly active users and an estimated 50 million shopping-related queries per day, ChatGPT just became the largest AI-native commerce channel on the planet. This article breaks down the technical protocol, the fee structure, the competitive dynamics, and -- most importantly -- exactly what retailers need to do this week to participate.

What You'll Learn

• What the Agentic Commerce Protocol (ACP) is and how its four-endpoint REST API works
• How Instant Checkout processes payments using Stripe's Shared Payment Tokens (SPTs)
• The complete fee model: OpenAI's 4% fee, combined take rates, and how they compare to Amazon, Google, and Microsoft
• Which retailers are live now vs. coming soon (Etsy, Shopify, Instacart, DoorDash, Target)
• ACP vs UCP: How the two competing protocols coexist and why dual implementation captures 40% more agentic traffic
• Four distinct onboarding paths for merchants of different sizes and platforms
• How to optimize product visibility so ChatGPT recommends your products before checkout
• What Amazon's crawler block means as a structural advantage for non-Amazon brands

Metric	Value	Source
ChatGPT weekly active users	800-900 million	DemandSage, Feb 2026
Daily shopping queries in ChatGPT	50 million	DemandSage, Feb 2026
U.S. consumers using GenAI for shopping	59%	DemandSage, Feb 2026
OpenAI transaction fee	4%	PYMNTS, Jan 2026
Combined ChatGPT + Shopify take rate	~9.2%	PYMNTS, Jan 2026
Dual ACP+UCP agentic traffic uplift	40% more	Checkout.com, Feb 2026
Agentic AI retail market size 2026	USD 60.43 billion	Mordor Intelligence, 2026
U.S. agentic e-commerce spending by 2030	$190-385 billion	Morgan Stanley, 2025

What Happened on February 16, 2026 -- And Why Does It Matter?

OpenAI officially launched "Buy it in ChatGPT" on February 16, 2026, making Instant Checkout available to all U.S. ChatGPT users -- including Free tier users. According to OpenAI's announcement, the feature lets shoppers browse product recommendations and complete purchases without ever leaving the chat window. Etsy is the first marketplace live with the feature, and over 1 million Shopify merchants are in the onboarding pipeline. This is not a beta. It is a production commerce channel now available to hundreds of millions of users.

The timing is significant. OpenAI first launched Instant Checkout in September 2025 for single-item purchases, according to Digital Commerce 360. The February 2026 expansion broadens access to free users, adds new retail partners, and introduces the Agentic Commerce Protocol as an open standard. The 2026 roadmap includes multi-item carts and international expansion.

For retailers already thinking about how AI agents are changing e-commerce through open protocols, this launch is the clearest signal yet that conversational commerce is no longer theoretical. ChatGPT processes 50 million shopping-related queries per day, and now those queries can convert directly into transactions. The strategic question is no longer "should we participate" but "how fast can we get live."

Key Finding: "Merchants pay a small fee on completed purchases, but the service is free for users, doesn't affect their prices, and doesn't influence ChatGPT's product results." -- OpenAI, February 2026

OpenAI is explicitly stating that payment participation does not influence product ranking. This separates ChatGPT's commerce model from Amazon's pay-to-play advertising model and positions it closer to a marketplace where organic product quality and relevance drive recommendations. Understanding what agentic commerce means for retailers is essential context for grasping why this distinction matters -- it means your product data, reviews, and structured content are the primary levers for visibility, not your ad spend.

What Is the Agentic Commerce Protocol and How Does It Work?

The Agentic Commerce Protocol (ACP) is an open standard codeveloped by OpenAI and Stripe that provides the structured interface between AI agents and merchant systems. As OpenAI describes it: "At the core of this experience is the Agentic Commerce Protocol which provides the language that lets AI agents and businesses work together to complete a purchase for a user."

ACP is open source under the Apache 2.0 license, uses date-based versioning in YYYY-MM-DD format, and is jointly governed by OpenAI and Stripe as Founding Maintainers. It can be implemented as a RESTful HTTP interface or as an MCP (Model Context Protocol) server, giving developers flexibility in how they expose commerce capabilities to AI agents.

The protocol defines four core endpoints that handle the complete purchase lifecycle:

1. Create Checkout -- The AI agent sends a unique SKU to the merchant's ACP endpoint, which returns cart/checkout data including supported payment methods and fulfillment options.
2. Update Checkout -- Allows modification of line item quantities, fulfillment methods, and customer details before payment.
3. Complete Checkout -- The agent passes a Shared Payment Token (SPT) from Stripe, the merchant processes payment, and the endpoint responds with order confirmation details.
4. Cancel Checkout -- Releases reserved inventory and updates checkout status to canceled.

This four-endpoint design is deliberately minimal. Unlike Google's Universal Commerce Protocol, which covers the entire commerce lifecycle from product discovery through post-purchase returns, ACP focuses tightly on the checkout transaction itself. As Stripe's newsroom explains: "OpenAI is open-sourcing the technology that powers Instant Checkout, and the Agentic Commerce Protocol is an open standard for AI commerce."

Pro Tip: If your development team is evaluating ACP integration complexity, know that the four-endpoint REST API is intentionally narrow in scope. For retailers already on Stripe, enabling ACP can require as little as one line of code. For custom implementations, the GitHub repository contains full specification documentation.

How Does the Stripe Shared Payment Token Protect Both Buyers and Sellers?

The security architecture behind Instant Checkout revolves around Stripe's Shared Payment Token (SPT) -- a new payment primitive purpose-built for agentic transactions. According to Stripe's documentation, SPTs solve a critical trust problem: how do you let an AI agent facilitate a payment without exposing raw payment credentials to either the merchant or the agent itself?

The payment flow works as follows, per Stripe's newsroom: "A ChatGPT user asks for product recommendations in the chat. When they are ready to buy, they are presented with a Stripe-powered checkout inline in the chat. After the buyer uses their preferred payment method, Stripe issues a Shared Payment Token (SPT)."

SPTs have three defining characteristics from Stripe's documentation:

• Scoped to a single transaction -- An SPT cannot be reused across multiple purchases, eliminating replay attacks.
• Time-limited -- The token expires after a set window, preventing stale authorization exploits.
• No raw credential exposure -- Neither the AI agent (ChatGPT) nor the merchant ever sees the buyer's card number, bank details, or authentication credentials.

This three-layer approach means the buyer enters payment information once into Stripe's secure interface, and the resulting token is all that passes through the AI agent to the merchant. The merchant processes the SPT through Stripe's standard payment rails and receives funds without ever handling sensitive payment data directly from the AI layer.

Watch Out: Shared Payment Tokens are single-use and time-limited. Merchants implementing custom ACP integrations must handle SPT expiration gracefully in their checkout flows. If a user hesitates or the agent session times out, the Create Checkout endpoint will need to be called again to generate a fresh token.

For retailers concerned about fraud, the SPT model inherits Stripe's existing fraud detection infrastructure while adding the additional constraint of single-use scoping. This is a meaningful security improvement over traditional e-commerce checkout where stored payment methods can be reused across sessions.

What Does It Cost? How Do ChatGPT Checkout Fees Compare to Other Channels?

The fee structure is one of the most discussed aspects of Instant Checkout. According to PYMNTS, OpenAI charges a 4% service fee on all completed transactions for Shopify merchants, with a 30-day free trial from the first qualifying order. When combined with standard Shopify Payments processing fees of approximately 2.9%, the total effective take rate reaches approximately 9.2%.

This fee structure positions ChatGPT between traditional marketplaces and direct commerce channels:

Channel	Transaction Fee	Total Take Rate	Notes
Amazon Marketplace	Varies by category	~25-30%	Referral fees + FBA + advertising
ChatGPT Instant Checkout	4% OpenAI fee	~9.2% with Shopify Payments	30-day free trial
Google AI Mode	0%	Standard processor fees only	No additional platform fee
Microsoft Copilot	0%	Standard processor fees only	No additional platform fee
Direct website	0% platform fee	~2.9% processing only	No discovery channel benefit

Key Finding: "Neither Google nor Microsoft is charging additional fees for chatbot purchases" -- PYMNTS, January 2026

The competitive dynamics here are worth analyzing carefully. At ~9.2% combined take rate, ChatGPT Instant Checkout costs roughly one-third of what an Amazon Marketplace transaction costs. But Google and Microsoft are currently charging zero platform fees for AI-powered purchases. Retailers need to weigh the 4% OpenAI fee against the channel's discovery potential: 800-900 million weekly active users and 50 million daily shopping queries create a distribution channel that did not exist six months ago.

For brands currently paying Amazon's 25-30% take rate, the math is straightforward: ChatGPT Instant Checkout represents a dramatically lower-cost channel with AI-native discovery built in. The question is whether the volume materializes -- and with 50 million daily shopping queries, early movers have reason to be optimistic. For a deeper look at how this fits into the broader shift away from traditional search, see our analysis of zero-click commerce implications for retailers.

Which Retailers Are Live and Who Is Coming Soon?

The Instant Checkout rollout is happening in waves, with different retailer categories coming online at different speeds. Here is the current landscape as of February 17, 2026:

Live Now (February 2026):

• Etsy -- U.S. Etsy sellers can complete transactions directly inside ChatGPT, per OpenAI's announcement
• Instacart -- The first company to offer the Instant Checkout App experience in ChatGPT, enabling recipe-to-grocery checkout within ChatGPT
• DoorDash -- Launched a grocery shopping app within ChatGPT with recipe-to-grocery-order delivered in as little as an hour

Coming Soon (2026):

• Shopify merchants -- Over 1 million merchants including Glossier, SKIMS, Spanx, and Vuori, per OpenAI. Shopify's Winter '26 Edition lets merchants sell directly inside ChatGPT, Perplexity, and Microsoft Copilot from a single setup
• Target -- Expanded partnership announced alongside the February 16 launch, per Digital Commerce 360
• PayPal merchants -- PayPal's ACP server will bring tens of millions of small businesses to ChatGPT commerce in 2026, covering apparel, fashion, beauty, home improvement, and electronics
• JD Sports Fashion -- The first enterprise retailer to deploy Stripe's Agentic Commerce Suite via commercetools

Structurally Excluded:

• Amazon sellers -- Amazon has blocked ChatGPT-User and OAI-SearchBot crawlers in robots.txt, meaning Amazon product listings cannot be surfaced in ChatGPT shopping results

Pro Tip: Amazon's crawler block creates a structural first-mover advantage for non-Amazon brands. If you sell on both Amazon and your own Shopify store, your Shopify products can appear in ChatGPT while your Amazon listings cannot. Prioritize getting your direct-to-consumer storefront onto ChatGPT Instant Checkout immediately.

According to Modern Retail, Walmart now gets approximately 36% of referral traffic from ChatGPT -- a figure that underscores how much commerce volume is already flowing through conversational AI before Instant Checkout even launched broadly. The retailers who move fastest to enable checkout will capture a disproportionate share of this traffic.

How Does ACP Compare to Google's Universal Commerce Protocol?

With Google launching UCP at NRF on January 11, 2026 and OpenAI launching ACP-powered Instant Checkout on February 16, 2026, retailers now face two competing commerce protocols. According to TechCrunch, UCP launched with Shopify as co-developer and endorsements from 20+ retailers including Home Depot, Best Buy, and Macy's.

The key architectural differences, per Checkout.com's analysis:

Dimension	ACP	UCP
Scope	Checkout transaction only	Entire commerce lifecycle
Backing	OpenAI + Stripe	Google + Shopify
Protocol support	REST API or MCP server	REST, MCP, A2A (protocol-agnostic)
Payment integration	Stripe SPTs (tightly coupled)	Any PSP (protocol-agnostic)
Primary AI platform	ChatGPT	Google AI Mode, Gemini
Open source	Apache 2.0, GitHub	Open standard
Retail endorsements	Etsy, Shopify merchants, Target, Instacart, DoorDash	Home Depot, Best Buy, Macy's, Walmart, Target, Wayfair (20+)

The most important data point for retailers deciding between the two protocols comes from Checkout.com: merchants with dual UCP/ACP implementation are capturing 40% more agentic traffic than single-protocol stores. This strongly suggests the answer is not "ACP or UCP" but "both."

For a full breakdown of how ACP fits alongside UCP, MCP, and A2A, see our complete protocol comparison guide with decision matrix. The key takeaway is that ACP optimizes for the single-agent checkout experience within ChatGPT, while UCP covers the broader commerce lifecycle across multiple AI platforms. They are complementary, not mutually exclusive. For detailed UCP implementation guidance, see our complete UCP implementation guide.

What Are the Four Onboarding Paths for Merchants?

Not all retailers will follow the same path to Instant Checkout. Based on the research, there are four distinct integration routes depending on your existing platform and payment infrastructure:

Path 1: Stripe Direct (Lowest Friction)

If your store already processes payments with Stripe, OpenAI states that you can enable agentic payments in as little as one line of code. Stripe's Agentic Commerce Suite (ACS) is also available through platform partners including Wix, WooCommerce, BigCommerce, Squarespace, and commercetools. This is the fastest path for existing Stripe merchants regardless of their e-commerce platform.

Path 2: Shopify Agentic Storefronts

Shopify's Winter '26 Edition introduced Agentic Storefronts that let merchants set up once and syndicate their catalog to ChatGPT, Perplexity, and Microsoft Copilot simultaneously. The Shopify Catalog is open to every brand through the new Agentic plan, with full AI channel attribution and search trend insights available in the Shopify admin. Over 1 million Shopify merchants are eligible for ChatGPT Instant Checkout.

Path 3: PayPal ACP Server

For merchants using PayPal as their primary payment processor, PayPal announced an ACP server that will bring tens of millions of small businesses to ChatGPT commerce in 2026. PayPal has 430+ million active accounts across approximately 200 markets, making this the broadest merchant enablement path.

Path 4: Direct Application

Non-Shopify, non-Stripe, non-PayPal merchants can apply directly through chatgpt.com/merchants. This path requires implementing the ACP REST API from scratch using the open-source specification on GitHub. This is the most complex route but provides full control over the integration.

TL;DR

• Already on Stripe? One line of code. Do it today.
• On Shopify? Enable Agentic Storefronts in your admin. Syndicate to ChatGPT, Perplexity, and Copilot simultaneously.
• On PayPal? Wait for PayPal's ACP server rollout in 2026 -- or apply directly now.
• Custom platform? Implement the four-endpoint ACP REST API from the GitHub repo or apply at chatgpt.com/merchants.

What Product Feed Requirements Must Merchants Meet?

Getting Instant Checkout enabled is only half the equation. Your products need to be discoverable by ChatGPT's recommendation engine before a user can buy them. The OpenAI Product Feed Specification defines exactly what ChatGPT expects from merchant product catalogs.

Format requirements: Product feeds must be submitted as compressed JSON lines (jsonl.gz) or compressed CSV (csv.gz). Feeds are accepted as often as every 15 minutes, which means retailers with rapidly changing inventory (flash sales, limited drops, perishable goods) can maintain near-real-time accuracy.

Required fields per the OpenAI Product Feed Spec:

• Product identifiers: GTIN, UPC, or MPN
• Core product data: title, price, availability
• Seller information: seller_name
• Policy pages: return policy URL, privacy policy URL, terms of service URL
• Checkout flag: enable_checkout=true (which requires enable_search=true)

Watch Out: The enable_checkout=true flag requires enable_search=true to also be set. This means you cannot enable checkout without also making your products discoverable in ChatGPT search results. If you want to sell through Instant Checkout, your products must participate in the recommendation layer first.

The policy page requirements (return, privacy, terms URLs) are a notable detail. ChatGPT is building trust signals into the commerce layer from day one, requiring merchants to surface their policies so the AI agent can present them to buyers during the purchase flow. For guidance on how to structure product feeds that meet AI commerce requirements, see our guide on building compliant AI feed optimizers that meet merchant requirements.

The 15-minute refresh window is both an opportunity and a challenge. Large retailers with robust product information management systems can maintain real-time accuracy, while smaller merchants may struggle to push updates at that frequency. If your inventory management system can generate jsonl.gz or csv.gz exports on a schedule, you should configure the maximum refresh rate to ensure ChatGPT always has current pricing and availability data.

How Can You Ensure ChatGPT Recommends Your Products Before Checkout?

Instant Checkout only converts if ChatGPT recommends your product in the first place. The checkout experience happens after the AI has already decided which products to surface in response to a user's shopping query. Understanding how AI search multiplies every shopping query into retrieval sub-queries is critical for grasping why traditional SEO alone will not drive ChatGPT product visibility.

The discovery-to-checkout pipeline in ChatGPT works in three stages:

Stage 1: Query Interpretation -- The user asks something like "best running shoes for flat feet under $150." ChatGPT decomposes this into multiple retrieval sub-queries covering product features, user reviews, expert recommendations, and price comparisons.

Stage 2: Product Recommendation -- ChatGPT synthesizes information from crawled product pages, review sites, and structured product feeds to recommend specific products. This is where your product data quality, review volume, and content authority determine whether you appear.

Stage 3: Instant Checkout -- If the recommended product has checkout enabled, the user sees a "Buy" option inline in the chat. Stripe handles the payment flow, issues an SPT, and the order is processed.

The implication is clear: retailers must invest in both the checkout integration (ACP/Stripe) and the discovery layer (product content, structured data, reviews). A product with perfect ACP integration but poor content will never reach the checkout stage because it will not be recommended. For a tactical implementation approach, see our 5-step framework for ranking in ChatGPT.

Key Finding: According to DemandSage, 59% of U.S. consumers now use GenAI for shopping tasks, with 65% of them preferring ChatGPT. Retailers who optimize for ChatGPT product discovery are not targeting a niche -- they are targeting the majority of AI-assisted shoppers.

What Does the Competitive Landscape Look Like Across AI Shopping Platforms?

ChatGPT Instant Checkout does not exist in isolation. Four major AI platforms are competing for commerce transactions, each with different protocols, fee structures, and merchant ecosystems:

Platform	Protocol	User Base	Fee Model	Key Partners
ChatGPT	ACP	800-900M weekly active users	4% transaction fee	Stripe, Shopify, Etsy, PayPal
Google AI Mode	UCP	650M+ Gemini users	0% platform fee	Shopify, Home Depot, Best Buy, Macy's, Walmart
Perplexity	PayPal integration	Growing, 5,000+ merchants	Free for users	PayPal
Alexa+	Amazon-native	600M+ devices	Amazon marketplace rates	Amazon ecosystem only

Morgan Stanley projects $190-385 billion in U.S. e-commerce agentic spending by 2030. Mordor Intelligence estimates the agentic AI retail market at USD 60.43 billion in 2026, growing at a 29.29% CAGR through 2031. According to Checkout.com, agentic commerce could account for one-fifth of monthly household spending within five years.

The platform competition creates a clear strategic imperative for retailers: do not bet on a single platform. The Checkout.com data showing 40% more agentic traffic for dual ACP+UCP implementations confirms that multi-protocol strategies outperform single-protocol approaches. Shopify merchants have the most streamlined path to multi-platform presence thanks to Shopify Agentic Storefronts, which syndicate catalogs to ChatGPT, Perplexity, and Microsoft Copilot from a single setup.

Amazon's decision to block OpenAI's crawlers creates a notable gap in the competitive landscape. Amazon sellers are structurally excluded from ChatGPT commerce, while Walmart captures approximately 36% of ChatGPT referral traffic. For brands with a direct-to-consumer channel, this creates an unprecedented opportunity to compete against Amazon-dominant categories within AI-native commerce.

What Should Retailers Do This Week to Participate?

Based on the launch details and onboarding paths outlined above, here is a concrete action plan organized by merchant type:

If you are on Shopify (Priority: Immediate):

1. Log into Shopify admin and enable Agentic Storefronts from the Winter '26 Edition features
2. Ensure your Shopify Catalog is complete with GTIN/UPC identifiers, current pricing, and availability
3. Add return policy, privacy policy, and terms of service URLs to your store settings
4. Set enable_search=true and enable_checkout=true in your product feed configuration
5. Monitor the Shopify admin's AI channel attribution dashboard for ChatGPT traffic data

If you are on Stripe (Priority: Immediate):

1. Check your Stripe dashboard for Agentic Commerce Suite (ACS) availability
2. Enable agentic payments -- as little as one line of code per OpenAI
3. If you use WooCommerce, BigCommerce, Wix, Squarespace, or commercetools, check your platform's Stripe ACS integration
4. Submit your product feed in jsonl.gz or csv.gz format to OpenAI's feed endpoint

If you are on PayPal (Priority: Prepare Now):

1. Ensure your PayPal merchant account is active and in good standing
2. Watch for PayPal's ACP server rollout announcements in 2026
3. In the meantime, consider applying directly at chatgpt.com/merchants

If you are on a custom platform (Priority: Plan This Week):

1. Review the ACP specification on GitHub
2. Scope development effort for the four-endpoint REST API implementation
3. Apply at chatgpt.com/merchants for direct onboarding
4. Consider adding Stripe as a payment processor to unlock the one-line-of-code path

Pro Tip: Regardless of your platform, the single most impactful action you can take this week is ensuring your product data includes GTIN/UPC/MPN identifiers and that your policy pages (return, privacy, terms) are publicly accessible at stable URLs. These are hard requirements per the OpenAI Product Feed Specification.

Frequently Asked Questions

Is ChatGPT Instant Checkout available outside the United States?

ChatGPT Instant Checkout is currently available to U.S. ChatGPT users purchasing from U.S.-based sellers. According to Digital Commerce 360, the 2026 roadmap includes international expansion, but no specific launch dates have been announced for other markets.

Does paying the 4% OpenAI fee improve my product's ranking in ChatGPT?

No. OpenAI explicitly states that the fee "doesn't influence ChatGPT's product results." The 4% fee is a transaction fee on completed purchases, not a ranking signal. Product recommendations are driven by content relevance, product data quality, and user intent matching.

Can Amazon sellers participate in ChatGPT Instant Checkout?

Not through their Amazon listings. According to Modern Retail, Amazon has blocked ChatGPT-User and OAI-SearchBot crawlers in robots.txt. Sellers can participate through their own direct-to-consumer storefronts on Shopify, WooCommerce, or other platforms that support ACP.

How does ACP differ from Google's Universal Commerce Protocol?

ACP focuses narrowly on the checkout transaction with four REST endpoints, is tightly integrated with Stripe's payment infrastructure, and is currently used primarily by ChatGPT. UCP covers the entire commerce lifecycle, is protocol-agnostic (supporting REST, MCP, and A2A), and is backed by Google with 20+ retailer endorsements per TechCrunch. Checkout.com reports that dual implementation captures 40% more agentic traffic.

What is a Shared Payment Token and is it safe?

A Shared Payment Token (SPT) is a Stripe payment primitive that allows an AI agent to facilitate a purchase without exposing raw payment credentials. Per Stripe's documentation, SPTs are scoped to a single transaction and time-limited, meaning they cannot be reused or exploited after expiration.

How often should I update my product feed for ChatGPT?

The OpenAI Product Feed Specification accepts product feed refreshes as often as every 15 minutes. Retailers with frequently changing inventory (pricing, availability, limited drops) should maximize refresh frequency to ensure ChatGPT displays accurate data.

Can I sell on ChatGPT, Google AI Mode, and Perplexity simultaneously?

Yes. Shopify's Agentic Storefronts allow merchants to set up once and syndicate their catalog to ChatGPT, Perplexity, and Microsoft Copilot from Shopify admin. For non-Shopify merchants, implementing both ACP and UCP provides the broadest multi-platform coverage.

What product categories does ChatGPT Instant Checkout support?

The initial launch covers general retail through Etsy and Shopify merchants, with grocery delivery through Instacart and DoorDash. PayPal's ACP server will add coverage across apparel, fashion, beauty, home improvement, and electronics.

Is there a free trial for the 4% OpenAI transaction fee?

Yes. According to PYMNTS, OpenAI offers a 30-day free trial from the first qualifying order for Shopify merchants, allowing retailers to test the channel before committing to the fee structure.

How can I track whether my products appear in ChatGPT shopping recommendations?

Currently, ChatGPT does not offer a native analytics dashboard showing pre-purchase impressions or which queries triggered product recommendations. Retailers need third-party AI visibility tracking tools to monitor whether their products are being surfaced in conversational AI shopping results across ChatGPT, Google AI Mode, and Perplexity.

Sources

1. OpenAI (2026). "Buy it in ChatGPT." https://openai.com/index/buy-it-in-chatgpt/
2. Stripe (2026). "Stripe powers Instant Checkout in ChatGPT and releases Agentic Commerce Protocol codeveloped with OpenAI." https://stripe.com/newsroom/news/stripe-openai-instant-checkout
3. OpenAI & Stripe (2025). "Agentic Commerce Protocol -- GitHub Repository." https://github.com/agentic-commerce-protocol/agentic-commerce-protocol
4. Stripe (2025). "Introducing the Agentic Commerce Suite." https://stripe.com/blog/agentic-commerce-suite
5. Stripe (2025). "Shared Payment Tokens -- Documentation." https://docs.stripe.com/agentic-commerce/concepts/shared-payment-tokens
6. OpenAI (2026). "Product Feed Spec -- OpenAI Developers." https://developers.openai.com/commerce/specs/feed/
7. Digital Commerce 360 (2026). "OpenAI expands agentic commerce push." https://www.digitalcommerce360.com/2026/02/16/openai-expands-agentic-commerce-push/
8. Checkout.com (2026). "OpenAI's ACP and Google's UCP: What's the difference?" https://www.checkout.com/blog/openai-acp-google-ucp-difference
9. PYMNTS (2026). "Shopify Merchants to Pay 4% Fee on ChatGPT Checkout Sales." https://www.pymnts.com/news/ecommerce/2026/shopify-merchants-to-pay-4percent-fee-on-sales-made-through-chatgpt-checkout/
10. Shopify (2025). "Introducing Shopify Agentic Storefronts." https://www.shopify.com/news/winter-26-edition-agentic-storefronts
11. Instacart (2025). "Instacart App Launches in OpenAI ChatGPT." https://investors.instacart.com/news-releases/news-release-details/instacart-app-launches-openai-chatgpt-first-company-offer-new
12. DoorDash (2025). "DoorDash Launches Grocery Shopping App Within ChatGPT." https://about.doordash.com/en-us/news/openai
13. PayPal (2026). "Making Sense of the AI Shopping Protocol Moment." https://newsroom.paypal-corp.com/2026-01-22-Making-Sense-of-the-AI-Shopping-Protocol-Moment
14. Retail Tech Innovation Hub (2026). "JD Sports Fashion signs on as first retailer to use commercetools and Stripe AI technology." https://retailtechinnovationhub.com/home/2026/1/12/jd-sports-fashion-signs-on-as-first-retailer-to-use-commercetools-and-stripe-ai-technology
15. TechCrunch (2026). "Google announces a new protocol to facilitate commerce using AI agents." https://techcrunch.com/2026/01/11/google-announces-a-new-protocol-to-facilitate-commerce-using-ai-agents/
16. Morgan Stanley (2025). "Agentic Commerce Impact Could Reach $385 Billion by 2030." https://www.morganstanley.com/insights/articles/agentic-commerce-market-impact-outlook
17. Modern Retail (2025). "Amazon quietly blocks more of OpenAI's ChatGPT web crawlers." https://www.modernretail.co/technology/amazon-quietly-blocks-more-of-openais-chatgpt-web-crawlers-from-accessing-its-site/
18. DemandSage (2026). "ChatGPT Users Statistics (February 2026)." https://www.demandsage.com/chatgpt-statistics/
19. Checkout.com (2025). "Checkout.com adopts ACP to power agentic commerce for enterprise merchants." https://www.checkout.com/newsroom/checkout-adopts-acp-backed-by-openai-to-power-agentic-commerce-for-enterprise-merchants
20. Mordor Intelligence (2026). "Agentic AI In Retail And ECommerce Market Size Report." https://www.mordorintelligence.com/industry-reports/agentic-artificial-intelligence-in-retail-and-ecommerce-market
21. PayPal (2025). "OpenAI and PayPal Team Up to Power Instant Checkout." https://newsroom.paypal-corp.com/2025-10-28-OpenAI-and-PayPal-Team-Up-to-Power-Instant-Checkout-and-Agentic-Commerce-in-ChatGPT

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