From Dev.to
MCP, A2A, UCP, AP2... Confused? A Simple Map of AI Agent Protocols (November 2026)
MCP. A2A. AG-UI. A2UI. UCP. AP2. ACP. x402. And as of this week, Poppy. If your head spins every time a new agent protocol drops, you're not alone. Even the acronyms collide: "ACP" now means at least...