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AP2 Protocol

Secure, interoperable agent payment protocol

2025-09-22

Product Introduction

  1. The AP2 Protocol is an open framework developed by Google to enable AI agents to securely initiate and process payments on behalf of users. It extends existing standards like A2A and MCP to create a payment-agnostic infrastructure for agent-driven transactions.
  2. Its core value lies in establishing trust and interoperability across decentralized commerce ecosystems, allowing users, merchants, and payment providers to transact confidently through AI intermediaries.

Main Features

  1. Open & Interoperable: Vendor-neutral architecture works across all agent platforms, merchant systems, and payment networks through standardized interfaces and protocols.
  2. Privacy & Accountability: Implements cryptographically signed Verifiable Credentials (VCs) and role-based access controls to maintain user privacy while ensuring transaction auditability.
  3. Developer-Centric Design: Provides modular payment primitives that support traditional methods (credit cards, bank transfers) and emerging systems like cryptocurrency wallets through extensible APIs.

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