Extensions
UCP extension enabling secure exchange of user intents and authorizations using verifiable digital credentials (SD-JWT+kb). Provides cryptographic proof of user authorization for autonomous agent commerce.
UCP extension enabling platforms to transmit buyer consent choices for analytics, marketing, preferences, and data sales. Helps merchants comply with CCPA, GDPR, and other privacy regulations.
Core UCP capability that facilitates creation and management of checkout sessions, including cart management, line items, totals, and tax calculation. Supports flows with or without human intervention.
UCP extension enabling merchants to accept and validate discount codes during checkout. Supports code-based and automatic discounts with per-line-item allocation tracking.
UCP transport binding enabling a host application to embed a merchant's checkout interface via iframe/webview with bidirectional event messaging and optional delegation of payment and fulfillment to the host.
UCP extension that augments checkout with fulfillment management — shipping methods, delivery options, multi-destination support, and method combinations.
Core UCP capability that allows platforms to obtain OAuth 2.0 authorization to perform actions on a user's behalf, linking platform and merchant identities.
Core UCP capability enabling businesses to push asynchronous updates about order lifecycle events such as shipping, delivery, returns, and refunds.