Agent Integration Patterns: How A2A & MCP Protocols Build Scalable AI Systems

Building Multi-Agent Systems: 5 Integration Patterns with A2A and MCP Protocols Core Question: How can enterprises build scalable, interoperable multi-agent systems using A2A and MCP protocols to break down team, language, and organizational boundaries? No organization will build every agent it needs from scratch. The real value comes from discovering and using agents built by different teams, in different languages, across different organizations. This is exactly what A2A (Agent-to-Agent Protocol) and MCP (Model Context Protocol) solve—A2A handles agent-to-agent communication, while MCP manages agent-to-tool connections. At Cloud Next 26, Google Cloud released the infrastructure that makes this integration practical at enterprise …