--- title: Evolving AI chat with MCP Apps - Phil Nash - NDC... description: MCP Apps is an emerging MCP protocol extension that lets AI agent hosts render interactive web UIs (HTML/CSS/JS in a sandboxed iframe) as part of a... canonical: https://daily.dev/posts/evolving-ai-chat-with-mcp-apps---phil-nash---ndc-copenhagen-2026-cwy2vmzoq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Evolving AI chat with MCP Apps - Phil Nash - NDC Copenhagen 2026 | daily.dev og:description: MCP Apps is an emerging MCP protocol extension that lets AI agent hosts render interactive web UIs (HTML/CSS/JS in a sandboxed iframe) as part of a... og:url: https://daily.dev/posts/evolving-ai-chat-with-mcp-apps---phil-nash---ndc-copenhagen-2026-cwy2vmzoq og:image: https://api.daily.dev/og/posts/cwY2vMZoQ.png og:image:alt: Evolving AI chat with MCP Apps - Phil Nash - NDC Copenhagen 2026 og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Evolving AI chat with MCP Apps - Phil Nash - NDC Copenhagen 2026 **[NDC Conferences](https://daily.dev/sources/ndc)** · 38 min read · 0 upvotes · 0 comments ## Summary MCP Apps is an emerging MCP protocol extension that lets AI agent hosts render interactive web UIs (HTML/CSS/JS in a sandboxed iframe) as part of a conversation, rather than returning walls of text. The talk covers how MCP Apps work technically — tool responses that reference HTML resources, a JS SDK for bidirectional communication with the host, and capabilities like calling server tools, sending messages to chat, and requesting model completions. Live demos show a hello-world example in VS Code with GitHub Copilot and a more complex RAG search UI using OpenRag, with results also shown in Goose. Current support spans Claude Desktop, VS Code/Copilot, Goose, Postman, and ChatGPT. The speaker argues MCP Apps represent a ground-floor opportunity similar to early mobile app stores, enabling richer, more interactive agent experiences for commerce, data exploration, and configuration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#javascript](https://daily.dev/tags/javascript), [#ai-agents](https://daily.dev/tags/ai-agents), [#mcp](https://daily.dev/tags/mcp), [#rag](https://daily.dev/tags/rag) [View this post on daily.dev](https://daily.dev/posts/evolving-ai-chat-with-mcp-apps---phil-nash---ndc-copenhagen-2026-cwy2vmzoq) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Evolving AI chat with MCP Apps - Phil Nash - NDC Copenhagen 2026","url":"https://daily.dev/posts/evolving-ai-chat-with-mcp-apps---phil-nash---ndc-copenhagen-2026-cwy2vmzoq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/evolving-ai-chat-with-mcp-apps---phil-nash---ndc-copenhagen-2026-cwy2vmzoq"},"datePublished":"2026-08-05T14:03:28.418Z","dateModified":"2026-08-10T10:20:28.354Z","description":"MCP Apps is an emerging MCP protocol extension that lets AI agent hosts render interactive web UIs (HTML/CSS/JS in a sandboxed iframe) as part of a...","image":"https://i.ytimg.com/vi/CXtiHjCYSH8/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/CXtiHjCYSH8/sddefault.jpg","isAccessibleForFree":true,"articleSection":"NDC Conferences","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"NDC Conferences","logo":"https://media.daily.dev/image/upload/s--SiIyojEj--/f_auto/v1748760369/logos/ndc","url":"https://daily.dev/sources/ndc"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/evolving-ai-chat-with-mcp-apps---phil-nash---ndc-copenhagen-2026-cwy2vmzoq","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"javascript,ai-agents,mcp,rag","timeRequired":"PT38M","video":{"@type":"VideoObject","name":"Evolving AI chat with MCP Apps - Phil Nash - NDC Copenhagen 2026","description":"MCP Apps is an emerging MCP protocol extension that lets AI agent hosts render interactive web UIs (HTML/CSS/JS in a sandboxed iframe) as part of a...","thumbnailUrl":"https://i.ytimg.com/vi/CXtiHjCYSH8/sddefault.jpg","uploadDate":"2026-08-05T14:03:28.418Z","duration":"PT38M","url":"https://api.daily.dev/r/cwY2vMZoQ","embedUrl":"https://www.youtube.com/embed/CXtiHjCYSH8"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"NDC Conferences","item":"https://daily.dev/sources/ndc"},{"@type":"ListItem","position":3,"name":"Evolving AI chat with MCP Apps - Phil Nash - NDC Copenhagen 2026"}]} ```