What is the A2A protocol?

Agent2Agent (A2A) is an open-source protocol developed by Google aimed at enabling seamless communication between AI agents from different vendors, allowing them to work collaboratively without human intervention. By using existing web technologies such as HTTP, Server-Sent Events, and JSON, A2A facilitates interoperability among autonomous agents, which can range from scheduling tools to customer support bots. The protocol introduces "client" and "remote" agents, where the client agent assigns tasks, and the remote agent executes them, providing updates as necessary. This initiative, supported by over 50 technology partners including Atlassian and Salesforce, aims to create a dynamic multi-agent ecosystem that automates complex workflows and enhances efficiency. A2A works alongside the Model Context Protocol (MCP), which helps agents integrate with external tools like databases, thereby envisioning a future where AI agents can drive innovation and productivity in enterprises.

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