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Agent surface profile

Google AI Mode and Gemini checkout (UCP)

In short

Google's UCP-powered checkout lets shoppers buy eligible products inside AI Mode in Search and the Gemini app with Google Pay; the merchant stays merchant of record. Announced but not yet live: AP2, Mastercard Agent Pay, Amex ACE. One limit: google is not merchant of record; the retailer is.

Fact sheet

Type
Agent surface
Operator
Google
Homepage
developers.google.com
Matrix reach
1 live, 0 pilot, 3 announced, 0 not supported, 8 with no statement found

The column in full: every protocol

ProtocolStatusNoteSource and read date
ACPno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
UCPliveUCP checkout in AI Mode and Gemini with Google Pay for select merchants; US, CA, AU eligible products; merchant stays MoR.support.google.com, 4 Nov 2026
AP2announcedGoogle said at I/O it will bring AP2 to Google products in coming months, starting with Gemini Spark.blog.google, 4 Nov 2026
Visa TAPno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
Visa ICno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
Mastercard Agent PayannouncedMastercard named Google among partners on Agent Pay; Google's UCP help page says checkout uses standard FPANs todaymastercard.com, support.google.com, 4 Nov 2026
Agent Pay for Machinesno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
Amex ACEannouncedAmex lists Google among companies supporting its ACE developer kit; no live Google flow stated.americanexpress.com, 4 Nov 2026
x402no statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
MPPno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
Link for agentsno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
Verifiable Intentno statement foundno statement found (2026-11-04)developers.google.com, 4 Nov 2026
1 live or pilot of 12

What Google AI Mode does not do

  • Google is not merchant of record; the retailer is.
  • Does not yet use network agentic tokens in UCP checkout per its help page, which says standard FPANs are used today.
  • No published statement on accepting ACP, x402 or MPP in AI Mode or Gemini checkout.

Sourced facts

  • Merchant Center help: UCP checkout lets merchants put a checkout button on eligible listings in AI Mode in Google Search and on Gemini 'while keeping you the merchant of record'. support.google.com, read 4 Nov 2026.
  • The help article applies only to products with eligibility in the United States, Canada and Australia, and says the feature is available for select merchants with phased availability via an interest form. support.google.com, read 4 Nov 2026.
  • Shoppers pay with payment methods and shipping saved in Google Wallet; Google says the feature currently uses standard FPANs, and merchants need a Google Pay and Wallet Console account. support.google.com, read 4 Nov 2026.
  • Only listings carrying the native_commerce checkout_eligibility attribute show the Buy button. support.google.com, read 4 Nov 2026.
  • Google's UCP developer guide says UCP is expanding to new industries starting with Lodging and Food, uses a waitlist, and limits embedded checkout to approved merchants; native checkout is the default. developers.google.com, read 4 Nov 2026.
  • At Google Marketing Live, Google said UCP-powered checkout will roll out to Canada and Australia in the coming months, later the UK, and that the retailer always remains merchant of record. blog.google, read 4 Nov 2026.
  • At I/O Google said it would bring AP2 to Google products in the coming months, starting with Gemini Spark. blog.google, read 4 Nov 2026.
  • Google said UCP already enables direct checkout for hundreds of thousands of brands; new hub features (cart transfer, checkout flow testing) roll out in the US with Australia and Canada early next year. blog.google, read 4 Nov 2026.
  • Universal Cart launched in the US across Search and the Gemini app, saving items from multiple retailers and checking out with Google Pay or on merchant sites. blog.google, read 4 Nov 2026.
  • The UCP Shopping Tech Council lists members from Google, Shopify, Etsy, Target, Wayfair, Meta, Amazon, Microsoft, Stripe and Salesforce. github.com, read 4 Nov 2026.

In the vendors section

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Sources

  1. Google UCP developer guide, read 4 Nov 2026
  2. Merchant Center help: UCP-powered checkout, read 4 Nov 2026
  3. Google Marketing Live 2026 shopping updates, read 4 Nov 2026
  4. Introducing the Universal Cart, read 4 Nov 2026
  5. Boost your holiday sales with these agentic commerce updates, read 4 Nov 2026
  6. Google's new Universal Cart launches today in the U.S., read 4 Nov 2026
  7. UCP central MAINTAINERS.md, read 4 Nov 2026
  8. Mastercard unveils new tools and collaborations, read 4 Nov 2026
  9. Amex Agentic Commerce Experiences, read 4 Nov 2026

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