AP2 Payment Mandate

Before writing code

Fetch live docs:

1. Fetch https://ap2-protocol.org/ap2/specification/ for the Payment Mandate schema
2. Web-search site:github.com google-agentic-commerce AP2 payment mandate for type definitions
3. Web-search site:github.com google-agentic-commerce AP2 src/ap2/types payment for Python types
4. Fetch https://ap2-protocol.org/overview/ for Payment Mandate conceptual details

Conceptual Architecture

What the Payment Mandate Is

The Payment Mandate is a separate VDC specifically for the payment ecosystem — shared with payment networks (Visa, Mastercard) and issuers (banks). Unlike the Cart/Intent Mandates that focus on purchase authorization, the Payment Mandate provides visibility into the agentic nature of the transaction.

Purpose