A2A Protocol Reaches v1.2 with Signed Agent Cards and 150 Organizations in Production — Now Under Linux Foundation Governance

Google Cloud Blog·high signal

Google's Agent2Agent protocol has reached version 1.2 with the critical addition of signed agent cards using JSON Web Signature (JWS/RFC 7515) for cryptographic domain verification. 150 organizations are now running A2A in production (not pilot), including Microsoft Azure AI Foundry, Amazon Bedrock AgentCore, Salesforce, SAP, and ServiceNow. Governance moved under the Linux Foundation's Agentic AI Foundation with a public RFC process. This is the strongest signal yet that agent-to-agent interoperability is moving from spec to infrastructure.