UCP Checker
Check a store

Checkout

Initiate and complete a purchase. The core transactional capability of UCP — every verified store supports this.

dev.ucp.shopping.checkout stable governed by ucp.dev Authority-bound · 3 off-authority
18,997verified stores declare it
96%of the verified stores we check
Shoppingcategory

Who declares it

verified stores we check
By store platform
Shopify 57%Wix 39%Shoptet 1% others 3%
By release
2026-08-2559%
2026-04-0840.9%
2026-01-230.1%
2026-01-110.1%

Examples

12 of 18,997, highest UCP Score first
assistant-experiments.vercel.app Custom or not identified · 2026-04-08 devucp.netsgroup.com Custom or not identified · 2026-08-25 houseofparfum.nl WooCommerce · 2026-08-25 acs-exploration.vercel.app Custom or not identified · 2026-04-08 book.hugocatarino.com Custom or not identified · 2026-04-08 c73071f29621970e.finqustore.dev Custom or not identified · 2026-08-25 cervicaltractions.com WooCommerce · 2026-08-25 elastogels.com WooCommerce · 2026-08-25 magedemo.logicrayslabs.com Magento · 2026-08-25 singon.com.np Odoo · 2026-04-08 thelumigroup.com WooCommerce · 2026-08-25 ticketfairy.com Custom or not identified · 2026-08-25

Each store has its own status page. To find more, search the directory.

Extended by

Capabilities that compose onto Checkout through the spec's extends mechanism, with the vendor authority that governs each.

Fulfillment Governed by ucp.dev dev.ucp.shopping.fulfillment 18,937 stores Discount Governed by ucp.dev dev.ucp.shopping.discount 18,554 stores Buyer Consent Governed by ucp.dev dev.ucp.shopping.buyer_consent 236 stores AP2 Mandate Governed by ucp.dev dev.ucp.common.payment.ap2_mandate 6 stores Loyalty Governed by ucp.dev dev.ucp.common.loyalty 3 stores Checkout Fulfillment Governed by ucp.dev dev.ucp.shopping.checkout.fulfillment 2 stores Checkout Discount Governed by ucp.dev dev.ucp.shopping.checkout.discount 2 stores Payment Authentication Governed by ucp.dev dev.ucp.common.payment.authentication 2 stores Split Payments Governed by ucp.dev dev.ucp.common.payment.split_payments 2 stores Com Ticketfairy Www Ticketing Selection Governed by ticketfairy.com com.ticketfairy.www.ticketing.selection 1 store Com Ticketfairy Www Ticketing Attendees Governed by ticketfairy.com com.ticketfairy.www.ticketing.attendees 1 store Gift Card Governed by ucp.dev dev.ucp.shopping.gift_card 1 store Dev Usp-Protocol Services Paid Bookings Governed by usp-protocol.dev dev.usp-protocol.services.paid_bookings 1 store Org Ptpge Print Identity Governed by ptpge.org org.ptpge.print.identity 1 store Space Grooveshop Payments Hosted Selection Governed by grooveshop.space space.grooveshop.payments.hosted_selection 1 store Payment Terms Governed by ucp.dev dev.ucp.common.payment.terms 1 store Buyer Identity Governed by ucp.dev dev.ucp.shopping.buyer_identity 1 store Me Andyhoang Eshop Gift Wrap Governed by andyhoang.me me.andyhoang.eshop.gift_wrap 1 store Com Appointedd Intent Governed by appointedd.com com.appointedd.intent 1 store Com Appointedd Booking Governed by appointedd.com com.appointedd.booking 1 store Embedded Checkout Governed by ucp.dev dev.ucp.shopping.checkout.embedded 1 store

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