authorization · Google

Agent Payments Protocol

Cryptographic spend mandates: proof a human delegated a specific purchase. Composes with UCP/ACP; it is not a storefront spec.

Public paths Vokko probes

Spec / docs: https://github.com/google-agentic-commerce/ap2

Other protocols: ucp · acp · tap · mcp · a2a · x402 · mpp · llms · ai-plugin · openapi