• AWS Open Source Blog Open Protocols for Agent Interoperability Part 4: Inter-Agent Communication on A2A Welcome to Part 4 of our blog series on Open Protocols for Agent Interoperability where we will cover the Agent-to-Agent (A2A) protocol, AWS’ involvement with the Linux Foundation-based open standard, and our support of A2A in the Strands Agents SDK. • Here is what we’ve covered so far: - Part 1: How the Model Context Protocol (MCP) facilitates inter-agent communication and how AWS has been working on MCP specification enhancements to better support inter-agent communication. • - Part 2: Details on recent MCP specification updates around Authentication. • - Part 3: How to build inter-agent systems with the new Strands Agents SDK and MCP. • Standard protocols are the primary way to connect networked services. • Often multiple protocols exist to address different ways of making network connections.
Article Summaries:
- AWS has released Part 4 of its “Open Protocols for Agent Interoperability” series, focusing on the Agent‑to‑Agent (A2A) protocol. The post explains how A2A enables AI agents built on different frameworks and by different vendors to communicate and collaborate, complementing the earlier Model Context Protocol (MCP). AWS highlights its role in the Linux Foundation‑based A2A standard and its integration of A2A support into the open‑source Strands Agents SDK. The company outlines planned enhancements-including Bedrock AgentCore support, SigV4 integration, and Java SDK improvements-to make A2A robust on AWS and foster broader AI‑powered application development.
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