Google (AI Mode and Gemini checkout)

At a glance

What it is

Google's agent checkout in AI Mode in Search and the Gemini app, built on UCP: merchants add a checkout button to eligible listings, shoppers pay with Google Pay, and the merchant stays seller of record.

Type

Agent surface

Operator

Google

Homepage

developers.google.com

Matrix column

1 live, 0 pilot, 3 announced, 0 not supported, 8 with no statement found
Google AI Mode in the matrix

Last read

5 Nov 2026

What it does for this layer

• Google says UCP-powered checkout is available to select merchants, who express interest through a form and complete a technical implementation in phases. support.google.com, read 5 Nov 2026.
• Google says merchants do not need a Google Pay button on their own checkout to take part, but do need a Google Pay and Wallet Console account. support.google.com, read 5 Nov 2026.
• Google says a merchant whose PSP is not integrated with the Google Pay API can have the PSP onboard to it. support.google.com, read 5 Nov 2026.
• Google says that with the new checkout the transaction happens on Google's surfaces, while with the existing checkout button it happens on the merchant's site. support.google.com, read 5 Nov 2026.
• Google's UCP developer guide offers a default Native checkout integration and an optional Embedded path for specific approved merchants. developers.google.com, read 5 Nov 2026.
• Google's UCP guide says UCP keeps an accountability trail between merchants, credential providers and payment services. developers.google.com, read 5 Nov 2026.
• Google's UCP guide says merchants use their existing Merchant Center shopping feeds to take part. developers.google.com, read 5 Nov 2026.

Partner lists that name it

Products and plans

Standards

Checks on this vendor's domains

How each check is read

What it does not do

• Google does not become the merchant of record for UCP checkout; the merchant remains seller of record.
• Google's UCP checkout does not yet accept tokenised or non-card payment forms; it uses card numbers saved in Google Wallet.

Related pages on this site

• Google AI Mode and Gemini checkout (UCP), agent surface profile
• Universal Commerce Protocol (UCP), protocol profile
• Agent Payments Protocol (AP2), protocol profile
• All agent surfaces in the vendors section
• All vendors
• The protocol support matrix