{"protocol_version":"1.0","merchant":{"id":"123456789","name":"EcoXMart"},"endpoints":{"session":"/api/ucp/session","update":"/api/ucp/update","complete":"/api/ucp/complete","orders":"/api/ucp/orders","auth":"/api/ucp/auth","discount":"/api/ucp/discount"},"capabilities":["guest_checkout","account_linking","discounts","order_management","fulfillment_options"]}