Manifest UI blocksfor shadcn/ui.

Manifest UI is an open-source shadcn/ui library for building ChatGPT apps and other agentic interfaces, where the UI shows up inside a chat rather than on a web page. Its blocks are the pieces an assistant might put in a reply: product lists, an amount input, order and payment confirmations, event cards and ticket tier selection, quick replies, option lists and tag selects, progress steps and status badges, a map carousel, contact and issue report forms, and embeds styled like X, Instagram, LinkedIn and YouTube posts.

Everything is built with React, Tailwind CSS v4 and shadcn/ui, themed through CSS custom properties, and installs with the shadcn CLI. For new projects, the docs point to the Alpic SkyBridge starter, which comes with Manifest UI already set up. Every component is free, and block suggestions are taken on GitHub.