Agent2Agent (A2A) Protocol
Breaking Down Barriers Between AI Agents
An open protocol by Google that enables seamless communication and interoperability between AI agents from different vendors and frameworks. A2A provides a standardized way for agents to discover each other's capabilities, negotiate interaction methods, and collaborate securely on complex tasks.
A2A Protocol Overview
An open protocol launched by Google on April 9, 2025, designed to solve interoperability challenges between different AI agents
Agent Discovery & Collaboration
Agents expose their capabilities through Agent Cards, allowing other agents to discover and interact with them regardless of the underlying framework or vendor.
Enterprise-Ready Design
Built with enterprise requirements in mind, supporting standard authentication schemes, streaming for real-time updates, and push notifications for asynchronous workflows.
Task-Based Workflow
Structured around tasks with clear lifecycle states, supporting rich content types including text, files, and structured data, enabling complex multi-turn interactions.
Quick Example: Agent Card
{
"name": "Weather Agent",
"version": "1.0.0",
"description": "Provides weather forecasts and current conditions",
"capabilities": [
{
"name": "getCurrentWeather",
"description": "Get current weather conditions for a location",
"parameters": {
"location": {
"type": "string",
"description": "City name or coordinates"
}
},
"returns": {
"type": "object",
"properties": {
"temperature": { "type": "number" },
"conditions": { "type": "string" },
"humidity": { "type": "number" }
}
}
}
]
}Join the A2A Ecosystem
Whether you're building AI agents or integrating them into your applications, A2A provides the foundation for creating powerful multi-agent systems that can work together seamlessly across organizational boundaries.
Explore the A2A Ecosystem
Understand all aspects of the A2A protocol, from technical details to practical applications
Protocol Guide
Dive deep into the core concepts, components, and workflows of the A2A protocol.
A2A vs MCP
Compare A2A and MCP protocols and understand how they complement each other.
Use Cases
Explore real-world applications and value of A2A protocol across different industries.
Developer Resources
Access quick start guides, code examples, and development tools.
About A2A
Learn about the origins, vision, and future roadmap of the A2A protocol.
Documentation
Access comprehensive documentation and technical specifications.