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What Is A2A(Agent to Agent) Protocol? | A2A Explained | Google A2A Protocol

BY c1pqm
June 2, 2025
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SimplyLearns YouTube Tutorial on A2A Protocol

Overview

In this tutorial, we cover the A2A protocol introduced by Google, an open standard for AI agent communication across various platforms and architectures.

Key Concepts

What is A2A Protocol?

  • Agent to Agent Protocol: Designed to enable AI agents to communicate and collaborate seamlessly.
  • Purpose: Breaks traditional AI silos, fostering multi-agent workflows, cross-platform automation, and plug-and-play AI systems.
  • Components: Utilizes agent cards, common protocols like JSON, RPC, HTTP, and S808 to understand and interact with different agents.

Example Scenario

  • HR Process: An AI agent could streamline the hiring process by coordinating tasks like IT support, payroll setup, and workspace allocation, eliminating the need for multiple emails and manual follow-ups.

Integration with MCP

  • Relation to MCP: A2A complements MCP by enhancing each other's capabilities, providing an add-on for interoperability.

Google's A2A Protocol Details

  • Capabilities: Includes capability discovery, task completion, collaboration, and user experience negotiation.
  • Technical Aspects: Embraces existing standards (JSON, RPC), ensures secure by default settings, and supports modality agnostic processes.

Practical Application

  • Demonstration Project: A simple currency conversion demo using Langraph and other AI tools like Google Gemini.
  • Setup Process:
    1. Clone the repository.
    2. Create an API key for communication.
    3. Set up a virtual environment in Python.

Conclusion

The A2A protocol represents a significant advancement in AI ecosystems by providing a standardized communication method for diverse AI tools. It's crucial for organizations looking to enhance scalability, flexibility, and innovation in AI developments.

Further Learning

  • Explore SimplyLearn's AI courses and certifications for advanced learning in AI, machine learning, and related fields.

Note

For more detailed instructions or if you face specific issues during setup, refer to SimplyLearn's support team through comments.

Stay tuned for more tutorials and learn how to advance your career in AI and other tech fields.

    What Is A2A(Agent to Agent) Protocol? | A2A Explained | Google A2A Protocol