Architecture Digest

Oct 19, 2026 · Artificial Intelligence

Google's A2A Protocol: The TCP/IP for AI Agents? 26k Stars & Linux Foundation Backing

Google's A2A protocol, now hosted by the Linux Foundation, defines an open standard for AI agents to discover, communicate, and collaborate across frameworks using JSON-RPC 2.0, Agent Cards, and three interaction modes, complementing MCP's tool-use focus with agent-to-agent coordination.