Under the Hood: Universal Commerce Protocol (UCP)

The Universal Commerce Protocol (UCP) is an open-source standard developed by Google in collaboration with industry leaders to enable seamless commerce journeys across consumer surfaces, businesses, and payment providers. UCP aims to simplify integration, support real-time inventory checks, dynamic pricing, and instant transactions, and is compatible with existing retail infrastructure. It supports multiple transports and payment options, and is designed to power agentic commerce on any surface or platform.