ChatGPT shopping (Instant Checkout, ACP discovery, ChatGPT agent)

Fact sheet

Type

Agent surface

Operator

OpenAI

Homepage

chatgpt.com

Matrix reach

0 live, 0 pilot, 2 announced, 1 not supported, 9 with no statement found

Published pricing

Merchant page: no fees on purchases that start in ChatGPT and complete on the merchant's site or app. The earlier Instant Checkout fee (reported 4% for Shopify merchants) applied to in-chat checkout, now withdrawn as a standalone flow. chatgpt.com, read 4 Nov 2026

The column in full: every protocol

What ChatGPT does not do

• Does not run a standalone in-chat Instant Checkout for merchants as of 2026-11-04; purchases complete on merchant sites or apps.
• Is not merchant of record; the merchant was MoR even under Instant Checkout.
• Publishes no statement on UCP, AP2 or x402 support in ChatGPT shopping.

Sourced facts

• OpenAI launched Instant Checkout in ChatGPT for US Plus, Pro and Free users, starting with US Etsy sellers, with Shopify merchants announced as coming soon. openai.com, read 4 Nov 2026.
• At launch the merchant was merchant of record: it accepted or declined the order, processed payment through its existing provider, and handled fulfillment and support. openai.com, read 4 Nov 2026.
• Instant Checkout payments were powered by Stripe; non-Stripe merchants could join via Stripe's Shared Payment Token API or the ACP Delegated Payments Spec. openai.com, read 4 Nov 2026.
• OpenAI said merchants pay a small fee on completed Instant Checkout purchases and open-sourced ACP, co-developed with Stripe. openai.com, read 4 Nov 2026.
• Trade press reported a 4% OpenAI fee on Shopify merchant sales completed inside ChatGPT checkout, on top of payment processing. pymnts.com, read 4 Nov 2026.Trade press
• OpenAI wrote that the initial Instant Checkout 'did not offer the level of flexibility that we aspire to provide' and is letting merchants use their own checkout while it focuses on discovery. openai.com, read 4 Nov 2026.
• OpenAI expanded ACP to carry product feeds and promotions for discovery; Target, Sephora, Nordstrom, Lowe's, Best Buy, The Home Depot and Wayfair integrated ACP for discovery. openai.com, read 4 Nov 2026.
• Walmart introduced an in-ChatGPT app that moves users into a Walmart environment with account linking, loyalty and Walmart payments, the path OpenAI now offers for deeper integrations. openai.com, read 4 Nov 2026.
• OpenAI's merchant page says it is 'moving away from a standalone Instant Checkout experience' and that purchases are completed on merchant-owned websites or apps. chatgpt.com, read 4 Nov 2026.
• OpenAI's merchant page states there are no fees on purchases that start in ChatGPT and are completed on the merchant's site or app. chatgpt.com, read 4 Nov 2026.
• ChatGPT agent (launched 17 Jul 2025) can browse and buy on websites and is trained to ask permission before actions with real-world consequences such as a purchase. openai.com, read 4 Nov 2026.
• ACP lead maintainers listed on GitHub are OpenAI, Stripe and Meta; Meta was added as a TSC member by commit on 24 Apr 2026. github.com, read 4 Nov 2026.

In the vendors section

• OpenAI (ChatGPT shopping), agent surface profile
• Instacart, retailer profile

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