UCP Checker
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Checkout

stable

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

dev.ucp.shopping.checkout governed by ucp.dev ✓ Authority-bound · 3 off-authority
18,940
Verified Stores
Shopping
Category
Stable
Spec Status
DomainStatus
agrohorticola.ro ✓Verified agrosaludanimal.com ✓Verified agroyute.com ✓Verified agrupacionesposascristianas.org ✓Verified aguilaycia.cl ✓Verified agwayct.com ✓Verified aharay.com ✓Verified ahoy-restaurant-capbreton.fr ✓Verified ahuva.com ✓Verified ai-markets.shop ✓Verified ai-techworld.com ✓Verified ai-tomioka.work ✓Verified aiababy.com ✓Verified aiartshop.com ✓Verified aibuy-qa2.myshopify.com ✓Verified aiconduit.app ✓Verified aienergyapac.com ✓Verified aihomecamera.com ✓Verified aikofujiwara.com ✓Verified ailecocukegitim.com ✓Verified aimor.app ✓Verified aims.ie ✓Verified ain-soph.jp ✓Verified ainewlife.online ✓Verified aipasbike.com ✓Verified airback.store ✓Verified airback.us ✓Verified airco4car.nl ✓Verified airdrierodeo.com ✓Verified airefusion.com ✓Verified aireonewest.ca ✓Verified airfixservice.com ✓Verified airlinktt.net ✓Verified airpowersquadron.org ✓Verified airsenalshop.com ✓Verified airsoft-online.cz ✓Verified airsoftmorava.cz ✓Verified airsupport-tactical.com ✓Verified airtecfreios.com.br ✓Verified ait-tr.de ✓Verified aiteec.com ✓Verified ajbir.com ✓Verified ajdmercantile.com ✓Verified ajfan.store ✓Verified ajmotion.com ✓Verified ajprojectconsulting.mc ✓Verified ajshoods.com ✓Verified ajsmotorcycles.co.uk ✓Verified ajtech.sk ✓Verified ak-blastermod.com ✓Verified
Page 9 of 379 · 18,940 stores

Extended by

Capabilities that compose onto Checkout via the spec's extends mechanism, grouped by the vendor authority that governs them.

Fulfillment 18,881 stores
dev.ucp.shopping.fulfillment
ucp.dev
Discount 18,507 stores
dev.ucp.shopping.discount
ucp.dev
Buyer Consent 211 stores
dev.ucp.shopping.buyer_consent
ucp.dev
AP2 Mandate 5 stores
dev.ucp.common.payment.ap2_mandate
ucp.dev
Loyalty 3 stores
dev.ucp.common.loyalty
ucp.dev
Checkout Fulfillment 2 stores
dev.ucp.shopping.checkout.fulfillment
ucp.dev
Checkout Discount 2 stores
dev.ucp.shopping.checkout.discount
ucp.dev
Payment Authentication 2 stores
dev.ucp.common.payment.authentication
ucp.dev
Split Payments 2 stores
dev.ucp.common.payment.split_payments
ucp.dev
Com Ticketfairy Www Ticketing Selection 1 store
com.ticketfairy.www.ticketing.selection
ticketfairy.com
Com Ticketfairy Www Ticketing Attendees 1 store
com.ticketfairy.www.ticketing.attendees
ticketfairy.com
Gift Card 1 store
dev.ucp.shopping.gift_card
ucp.dev
Dev Usp-Protocol Services Paid Bookings 1 store
dev.usp-protocol.services.paid_bookings
usp-protocol.dev
Org Ptpge Print Identity 1 store
org.ptpge.print.identity
ptpge.org
Space Grooveshop Payments Hosted Selection 1 store
space.grooveshop.payments.hosted_selection
grooveshop.space
Payment Terms 1 store
dev.ucp.common.payment.terms
ucp.dev
Buyer Identity 1 store
dev.ucp.shopping.buyer_identity
ucp.dev
Me Andyhoang Eshop Gift Wrap 1 store
me.andyhoang.eshop.gift_wrap
andyhoang.me
Com Appointedd Intent 1 store
com.appointedd.intent
appointedd.com
Com Appointedd Booking 1 store
com.appointedd.booking
appointedd.com
Embedded Checkout 1 store
dev.ucp.shopping.checkout.embedded
ucp.dev

Explore Protocol Data

Verticals retail, lodging, travel & food by industry Vendors capabilities & extensions by namespace authority Tools what MCP operations agents can invoke Transports how stores expose their APIs Payment Handlers which payment methods are accepted Spec Versions which protocol versions are in use