ConceptAgent-to-Agent Protocol / A2A
A2A Protocol
An open protocol published by Google in 2025, built on HTTP and JSON-RPC 2.0. It uses an Agent Card mechanism to enable agents to declare and discover their own capabilities, and is focused on asynchronous, long-running task collaboration between agents.
Core Facts
Source Articles
Building Deterministic IGA Review Tools for MCP/A2A Agents: A New Option for Security TeamsOct 10AI Agents Autonomously Launch and Trade Tokens: A Deep Dive into MCP, A2A, and the x402 ProtocolOct 6Brian Chesky: AI Agents Need Their Own Operating SystemOct 1Building a Message Board for AI Agents: RobotCantina's Multi-Agent Communication ExperimentSep 27The Right Approach to Agent-Native Apps: Shared Action Layers Over UI PuppeteeringSep 22Replicating Manus with Native Python: A Complete Guide to Multi-Agent Application DevelopmentSep 19FMOS: Giving Foundation Models a Self-Evolving Operating System LayerSep 18From Function Calling to MCP: Understanding the Core Mechanics of LLM Tool InvocationSep 17