Running Next.js inside ChatGPT: A deep dive into native app integration When OpenAI announced the Apps SDK with Model Context Protocol (MCP) support, it opened the door to embedding web applications directly into ChatGPT. But there's a significant difference between serving static HTML in an iframe and running a full Next.js application with client-side navigation, React Server Components, and dynamic routing. This is the story of how we bridged that gap. We created a Next.js app that runs natively inside ChatGPT's triple-iframe architecture, complete with navigation and all the modern features you'd expect from a Next.js application. Link to heading What ChatGPT apps and MCP enable ChatGPT apps are interactive applications that run inside ChatGPT conversations. When you ask ChatGPT to "find me a hotel in Paris," a Booking.com widget appears directly in the chat with real search results you can interact with.…