Google AP2 Spec

Agent Payments Protocol specification.

More in Agent Payments

x402

Open protocol that revives HTTP 402 so an API can charge small per-request payments from agents.

Nevermined

Payments infrastructure for AI agents. Delegate spending, meter usage, and settle autonomously across MCP, x402, and A2A. Start earning in minutes.

Crossmint

All-in-one stablecoin infrastructure for enterprises. Wallets, payments, onramps, orchestration & compliance. Launch in weeks, not months.

Agent Cash

AgentCash lets AI agents buy anything on your behalf. Pay per call, no keys, no subscriptions.

Information is summarised in our own words and may be out of date; check the vendor's site for current terms and prices. Not affiliated with Google AP2 Spec. Suggest a correction.

Category	Agent Payments
Authentication	No auth
Pricing	Free
Website	https://ap2-protocol.org/
Docs	https://github.com/google-agentic-commerce/AP2
Last checked	2026-10-14
As JSON	/api/v1/directory/google-ap2-spec.json