Resources
Official A2A resources
A2A official sitea2a-protocol.orgThe official A2A site: what the protocol is, how agents discover and collaborate, and the published specification, currently A2A 1.0 (we validate against the 1.0.1 release).A2A GitHub repogithub.com/a2aproject/A2AThe open-source A2A project under the Linux Foundation, contributed by Google: the specification, SDKs, and samples, licensed Apache 2.0.
Research & industry sources
commercetools – AI trends shaping agentic commercecommercetools.com/blog/ai-trends-shaping-agentic-commerce73% of consumers are already using AI in their shopping journey.Accenture – Agentic commerce and the future of paymentswww.accenture.com/au-en/blogs/banking/agentic-commerce-payments$3.1 trillion of online commerce will run through AI agents by 2030 – more than 30% of all online commerce – per Accenture.
Validate other agentic protocols
UCP Checkwww.ucpcheck.orgFree validator for Universal Commerce Protocol.ACP Checkwww.acpcheck.orgFree validator for Agentic Commerce Protocol.ONX Checkwww.onxcheck.orgFree validator for Order Network eXchange.MCP Checkwww.mcpcheck.orgFree validator for Model Context Protocol.ARD Checkwww.ardcheck.orgFree validator for Agentic Resource Discovery.AP2 Checkwww.ap2check.orgFree validator for Agent Payments Protocol.