Tag: OAuth 2.0
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Conversational Commerce Platform vs. UCP: Why Agentic Commerce Changes the Architecture
Traditional conversational commerce platforms add a chatbot layer on top of checkout. UCP makes any AI surface — Gemini, ChatGPT, Alexa — a native commerce platform. Here’s what the architectural shift means for merchants.
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Agent Payment Protocol: How UCP Powers Agentic Checkout
Agent payment protocol enables AI agents to authorize and complete purchases autonomously. Learn how UCP, AP2, and Google Pay work together to power agentic commerce — and what merchants must do to be ready.
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UCP’s Layered Architecture Explained: How REST, MCP, A2A, and AP2 Work Together
UCP’s layered architecture separates core transaction primitives from capabilities, extensions, and payment handlers — enabling the protocol to scale across millions of merchants and evolve without breaking existing integrations. This guide explains each layer, how merchant profiles and capability negotiation work, what the checkout state machine does, and how REST, MCP, A2A, and AP2 connect…
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How to Implement the Universal Commerce Protocol: A Step-by-Step Guide for Merchants
Implementing UCP with Google means enabling checkout inside AI Mode and Gemini through five official steps: Merchant Center preparation, business profile publishing, three core REST checkout endpoints, user identification path selection, and order status sync. This guide covers every step sourced directly from Google’s official UCP implementation documentation, including what UCP does not require of…
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Universal Commerce Protocol (UCP): Google’s Open Standard
The Universal Commerce Protocol (UCP) is an open-source standard co-developed by Google and Shopify, announced on January 11, 2026, establishing a unified technical framework for agentic AI commerce transactions. UCP’s architecture comprises three primary functional modules: Checkout (payment processing), Identity Linking (cross-platform user authentication), and Order Management (transaction fulfillment), designed to enable interoperability across merchant…