What is A2A protocol (Agent2Agent)?

This episode of Techsplainers explores the Agent-to-Agent (A2A) Protocol and its significant merger with the previously discussed Agent Communication Protocol (ACP) under the Linux Foundation umbrella. We examine how A2A was initially developed by Google to standardize communication between AI agents, enabling them to exchange information and coordinate tasks across different frameworks and platforms. The discussion highlights key principles of A2A including its simplicity, language model optimization, extensibility, and standardization features. We explain the strategic rationale behind the ACP-A2A merger, which combines ACP's REST-based simplicity with A2A's language model focus to create a unified industry standard. The episode also covers practical implications for developers, including migration paths from ACP to A2A, and concludes by exploring the future evolution of the protocol, which will likely include enhanced security models, scalability improvements, and specialized extensions for different industries and use cases. Find more information at https://www.ibm.com/think/topics/agent2agent-protocol Find more episodes https://www.ibm.biz/techsplainers-podcast Narrated by Cole Stryker