Google AP2

Google's Agent Payments Protocol with 60+ launch partners.

ProtocolsAP2A2A4 services ▸

What Google AP2 offers

Agent Payments Protocol (AP2) specFree (open source)

Open, rail-agnostic protocol using signed mandates to prove a human authorized an agent's purchase

A2A x402 extension

Extension co-built with Coinbase that adds stablecoin/crypto settlement to agent payment flows

Reference implementations

Open-source GitHub code and docs for shopping-agent, merchant, and credentials-provider roles

60+ partner payments network

Mastercard, PayPal, AmEx, Coinbase and others aligning card/bank/stablecoin settlement to AP2 mandates