UCP Core Summary: A deep dive into the Universal Commerce Protocol framework designed for Agentic Shopping.
The Holy Grail of Conversion
Native Checkout is the process where an AI agent completes a transaction without redirecting the user to a web browser. It is the core of UCP.
Requirements
To implement Native Checkout, your payment gateway must support tokenized Agent transactions (like Google Pay or Apple Pay for AI). Your UCP manifest must declare native_checkout: true.
Handling Errors
If an item goes out of stock during Native Checkout, your API must return a standardized UCP error code so the agent can inform the user via natural language and offer an alternative.
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