A2A Protocol v0.3 Is Here. The Internet for AI Agents Just Got Real.
Google just shipped A2A Protocol v0.3 with gRPC support, security card signing, and 150+ organizations behind it. This isn't a draft spec anymore — it's the infrastructure layer that agent interoperability is being built on. Here's what changed and why it matters.
A2A protocolagent interoperabilitymulti-agent systemsAI infrastructureagent marketplacesGoogleenterprise AI