MCP Apps: The Spec Behind Imagine, ChatGPT Apps and Shopify | Liad Yosef & Ido Salomon #shorts

🔥 New take from JSNation Amsterdam, June 2026 👉 every interactive UI you've seen inside Claude, ChatGPT or Cursor runs on one open spec. And the apps sending that UI no longer see what you do with it. ⚡ Inside the talk: 🔹 How a server returns a live, interactive UI component instead of a wall of text 🔹 Why your app no longer owns the user journey - the agent assembles the interface from atoms 🔹 The distribution math nobody has priced in: 800M weekly users, 170x the App Store at launch, one codebase everywhere 🎙 Liad Yosef and Ido Salomon wrote this spec. They co-author and maintain MCP Apps on the MCP Steering Committee, built MCP-UI and GitMCP. Liad previously led agentic interfaces in Shopify's CEO office; Ido led end-user AI at Palo Alto Networks. ▶️ Full talk on our YouTube channel - link in bio: YouTube: JavaScript Conferences by GitNation 💛 #JSNation #GitNation #MCP #MCPApps #MCPUI #ModelContextProtocol #AgenticWeb #AgenticAI #GenerativeUI #AIAgents #LLM #AITools #WebDevelopment #WebDev #SoftwareArchitecture #DeveloperTools #OpenSource #API #TypeScript #JavaScript #React #FrontendDevelopment #UIDevelopment #AIEngineering #ChatGPT #Claude #Cursor #VSCode #Shopify #PostHog #TechTalk #ConferenceTalk