How MCP and A2A Fit into One Enterprise Agent Architecture: Enterprise Agent Control Plane Series, Part 5

This article is Part 5 of a series on enterprise agent architecture, focusing on how the MCP (Model Context Protocol) and A2A (Agent-to-Agent) protocols integrate into a unified control plane. It clarifies that MCP is used for controlled access to tools, APIs, and data within an agent, while A2A enables independent agents to discover, delegate tasks, and collaborate across security domains. The architecture emphasizes a trusted enterprise controller that governs both planes, preventing uncontrolled agent meshes and ensuring validation of task results. The article is technical and relevant to IT/technology, covering software engineering, AI agent systems, and enterprise integration patterns.