Interoperability - AG2

A2A Protocol Support in AG2 v0.10

AG2 v0.10 introduces native support for the Agent2Agent (A2A) Protocol, enabling agents to communicate across different processes, frameworks, and languages through a standardized interface.

This article walks through implementing A2A in AG2, with a focus on practical patterns for building distributed agent systems.

What is A2A?

A2A is a JSON-RPC 2.0 protocol over HTTP(S) for agent-to-agent communication. It provides a framework-agnostic interface that allows agents built with different tools (AG2, LangGraph, CrewAI, Semantic Kernel, Pydantic AI, etc.) to communicate without custom integration code.

The protocol handles:

• Task delegation and execution
• Bidirectional communication between agents
• Authentication and security
• Observability and monitoring