Understanding A2A and MCP: How Agents Communicate with Each Other vs the External World

Your Agent Can Reason – But Can It ACT? (The MCP vs. A2A Guide)

The real challenge of enterprise AI is getting the agent to act in the real world (update S/4HANA, check SuccessFactors). This requires two distinct protocols: MCP and A2A. We cut through the confusion and show you when to use the standard for tool execution and when to use the protocol for agent orchestration to build a reliable, scalable agent system—whether you’re developing code-based agents on SAP BTP or low-code/no-code agents in Joule studio.

 

​ Your Agent Can Reason – But Can It ACT? (The MCP vs. A2A Guide)The real challenge of enterprise AI is getting the agent to act in the real world (update S/4HANA, check SuccessFactors). This requires two distinct protocols: MCP and A2A. We cut through the confusion and show you when to use the standard for tool execution and when to use the protocol for agent orchestration to build a reliable, scalable agent system—whether you’re developing code-based agents on SAP BTP or low-code/no-code agents in Joule studio.   Read More Technology Blog Posts by SAP articles 

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