"The Protocol Layer Play UCP standardizes the entire transaction stack-discovery, authentication, payment, fulfillment-as a protocol layer instead of just another API endpoint. According to Google's technical documentation, UCP establishes "a common language and functional primitives" that enable seamless commerce journeys between consumer surfaces, businesses, and payment providers. Think about it like TCP/IP for commerce. Nobody owns the internet protocol, but the companies that defined those standards shaped how the entire internet works. Google is making the same play here."
"When ChatGPT, Claude, Gemini, or any AI agent needs to execute a purchase, they don't build custom integrations with every retailer. They just speak UCP. The protocol defines how AI agents talk to payment providers, inventory systems, and fulfillment networks using a standard language. Google open-sourced the protocol to accelerate adoption. UCP is built on industry standards-REST and JSON-RPC transports, with Agent Payments Protocol (AP2), Agent2Agent (A2A), and Model Context Protocol (MCP) suppo"
Google is building an infrastructure layer called Universal Commerce Protocol (UCP) to enable agentic commerce, with backing from retailers including Walmart, Target, and Shopify. UCP standardizes discovery, authentication, payment, and fulfillment as a protocol layer rather than individual APIs, creating a common language and primitives for commerce journeys. AI agents like ChatGPT, Claude, and Gemini can use UCP to execute purchases without custom retailer integrations. Google open-sourced UCP and built it on REST and JSON-RPC transports, including Agent Payments Protocol (AP2), Agent2Agent (A2A), and Model Context Protocol (MCP). UCP aims to reshape e-commerce away from search-based shopping.
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