Tour of Agent Protocols: MCP, A2A, AG-UI, A2UI

on YouTube ↗50m

" summary

Covers four protocols with concrete demos and tooling: MCP servers (Fast MCP 2.0, Gemini CLI, MCP Inspector) showing a document server where a prompt calls read/edit tools and actually updates files; notes resources/prompts and deprecated sampling/roots. Agent2Agent uses an agent card JSON, A2A SDK and Inspector, and demonstrates a travel helper calling a remote currency agent via ADK (it works). AG-UI (Copilot Kit Dojo) standardizes event streams; A2UI generates JSON UIs rendered by Lit/Angular/Flutter (restaurant finder demo succeeds).

AI-written summary · about

" chapters (7)

1. 0:00Introduction and overview
2. 2:10Model Context Protocol explained
3. 12:26MCP tools resources prompts demo
4. 25:07Agent-to-Agent Protocol overview
5. 39:59AGUI protocol explained
6. 43:10A2UI protocol and demo
7. 50:04Q&A and closing

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