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Agents & Automation

Agent-to-Agent Protocol

A2A

Definition

The Agent2Agent protocol is an open standard that lets agent applications discover capabilities, exchange messages, and coordinate tasks across systems.

Why it matters for your business

Can support collaboration between agents built by different teams, while authentication, authorization, and trust still need explicit design.

In practice

A purchasing agent delegates a supplier-availability task to another authorized agent and tracks the returned status and result.

How it differs from related terms

A2A coordinates agent-to-agent collaboration. MCP standardizes how an AI application connects to tools, resources, and prompts. A system may use both.

Sources & further reading