Agent2Agent (A2A) Protocol Explained: Agent Discovery, Messaging, and Multi-Agent Gateways

<p>A hands-on, advanced deep dive into the Agent2Agent (A2A) protocol — the open standard for letting independent, opaque AI agents discover each other, exchange messages, manage long-running tasks, and return structured artifacts. You'll build a mental model for AgentCards, the message/part/task/artifact data model, JSON-RPC protocol bindings, streaming and push notifications, and the security and governance practices real production A2A systems need — then apply all of it in a capstone that builds a small A2A-style gateway routing requests to specialist agents.</p>

Tools: python, json-rpc, a2a protocol