Build AI Agents with A2A Protocol: A Practical Guide

The Agent-to-Agent (A2A) protocol enables AI agents to discover and communicate with each other autonomously.

What is A2A?

A2A is an open protocol that allows AI agents to:

• Discover each other via /.well-known/agent.json
• Exchange tasks via JSON-RPC
• Process requests autonomously

Example Agent Card

{
  "name": "My AI Agent",
  "description": "What this agent does",
  "url": "https://myapp.com/a2a",
  "skills": [
    {
      "id": "my_skill",
      "name": "My Skill",
      "description": "What the skill does"
    }
  ]
}

MetaVision A2A Integration

MetaVision AI Studio is A2A compatible:

import requests

payload = {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "message/send",
    "params": {
        "message": {
            "role": "user",
            "parts": [{"kind": "text", "text": "Generate a 3D dragon model"}]
        }
    }
}

r = requests.post("https://metavision.click/studio", json=payload)

Agent Discovery

Register your agent at a2aregistry.org to be discovered by other agents.

MetaVision is registered: https://metavision.click/.well-known/agent.json

Conclusion

A2A protocol is the future of AI agent communication. Start building today!