Tour of Agent Protocols: MCP, A2A, AG-UI, A2UI

The session introduces the Model Context Protocol (MCP) and Agent2Agent (A2A) Protocol, which standardize tool access and cross-platform agent communication. Together, they enable interoperable, collaborative agent ecosystems. Attendees will see demos using the Agent Development Kit (ADK) and learn to deploy cloud-based, protocol-compliant agent frameworks.

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Mete AtamelGoogle

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Thursday, June 18, 13:25-14:15

Room 2

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There are many emerging protocols around agents. Model Context Protocol (MCP) standardizes how models and agents access external tools and resources. Agent2Agent Protocol (A2A) defines how agents running on diverse frameworks and platforms communicate. Agent to User Interface Protocol (A2UI) defines how agents generate UI and Agent-User Interaction Protocol (AG-UI) defines how agents communicate with frontends. In this session, we’ll deep-dive into each protocol and show how they complement each other. As a bonus, we’ll also see demos on how to use these protocols in agent frameworks such as Agent Development Kit (ADK) to give you practical knowledge to start building your own interoperable agents.

agents

protocols

interoperability

collaboration

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Mete Atamel

Google

I’m a Software Engineer and a Developer Advocate at Google in London. I build tools, demos, tutorials, and give talks to educate and help developers to be successful on Google Cloud.