ucp-ap2-mandates
UCP AP2 Mandates Extension
Before writing code
Fetch live spec:
- Web-search
site:ucp.dev specification ap2-mandatesfor the extension schema - Fetch https://ucp.dev/2026-01-23/documentation/ucp-and-ap2/ for the conceptual relationship
- Web-search
site:ap2-protocol.orgfor the AP2 protocol specification
Conceptual Architecture
What AP2 Enables
AP2 (Agent Payments Protocol) enables fully autonomous agent commerce — the agent can authorize payments cryptographically without requiring real-time human approval for each transaction. The user pre-authorizes spending parameters, and the agent proves authorization via signed credentials.
Two Mandate Artifacts
- Checkout Mandate (
ap2.checkout_mandate): An SD-JWT+kb (Selective Disclosure JWT with Key Binding) credential that proves the user authorized the agent to complete this specific checkout at these specific terms.
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