UCP
UCP Assistant
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This interactive demo shows how the Universal Commerce Protocol works. Browse products, checkout via chat, and toggle Debug Mode to see the actual UCP API calls in real-time.
Implemented: /.well-known/ucp endpoint returns merchant capabilities, payment
handlers, and API endpoints.
Implemented: Full checkout flow with create, update, and complete operations. Real API calls visible in debug mode.
Payment processing uses test tokens. No real charges. In-memory storage resets on each session.
Real payment gateways, persistent orders, shipping integration. Visit ucp.dev for the full spec.