Trust
INFOGoogle Pay markers detected (informational)
Homepage or sampled PDPs reference the Google Pay JS SDK, Payments API namespace, or web-component. Google Pay is a checkout-quality signal for human shoppers — informational only, does not affect the agent-readiness score.
What this check looks for
Google Pay is an express-checkout path for human shoppers. AI agents pay via the protocol's payment layer (UCP `payment_handlers` / ACP delegated payment), never via your Google Pay button. We surface this anyway as a checkout-quality signal merchants want visibility into. Severity is INFO (weight 0) so it does not move the agent-readiness score.
Which AI surfaces it affects
- ChatGPT (ACP)90
- Microsoft Copilot70
- Google AI Mode (UCP)60
- Meta AI60
- Perplexity50
Weighted against the live specs — ACP 2026-04-17, UCP 2026-04-08.
How to fix it
Enable Google Pay through your payment processor (informational only)
Shopify
A few minutes- Shopify admin → Settings → Payments → Shopify Payments → Manage.
- Under Wallets, enable Google Pay.
- Confirm `google.payments.api` or `<google-pay-button` appears on a PDP via `view-source:`.
BigCommerce
A few minutes- BigCommerce admin → Store Setup → Payments.
- Enable a processor that supports Google Pay (Stripe, Braintree, Adyen).
- In the processor's settings, enable Google Pay for your domain.
WooCommerce
A few minutes- WordPress admin → WooCommerce → Settings → Payments.
- Configure Stripe (or Square / Braintree) and enable Google Pay in the gateway's settings.
Custom / headless
Developer- Use a payment processor that supports Google Pay (e.g., Stripe, Adyen, Braintree).
- Embed the processor's payment SDK on your checkout page; the SDK detects platform support automatically.
The spec it's pinned to
Google Pay availability — payment options observed
Google Pay availability is a checkout-quality signal merchants want surfaced; AI agents pay through the protocol layer (UCP/ACP), not the Google Pay button, so this is informational only.
Does your store pass this check?
Run the full audit — 82 checks across five AI shopping surfaces. Most tools only check whether you get mentioned; we check whether an agent can buy from you.