The Understated Protocol That Could Reshape Enterprise AI

A2A is an open protocol from Google Cloud NEXT '26 that enables AI agents from different vendors to communicate using standard interfaces. With 150+ enterprises already running it in production, A2A solves the critical fragmentation problem where incompatible agent interfaces require custom integration code. By standardizing agent-to-agent communication with familiar technologies like HTTP and JSON-RPC, it could become as foundational to the AI ecosystem as MCP—quietly transforming how enterprises build and scale multi-agent systems.