MCP Apps support on Vercel
By Steven Van ·
MCP Apps are a provider-agnostic standard for embedded UIs, and Vercel now supports building them with Next.js SSR and React Server Components.
Vercel now supports building and deploying MCP Apps, with full support for Next.js. MCP Apps are similar to ChatGPT apps, but are a provider-agnostic open standard for embedded UIs: they run inside iframes and communicate with any compatible host, including Cursor, Claude.ai and ChatGPT, over a shared bridge.
The standard uses ui/* JSON-RPC over postMessage, so a single UI can work across hosts without platform-specific integrations. Combined with Next.js on Vercel, this lets developers use server-side rendering and React Server Components to build portable agent interfaces. Vercel has a template to deploy and documentation for getting started.
