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Development · Web app

prompt-kit Primitives

Fullstack building blocks for AI apps installable with shadcn CLI

From the Xiry library · Updated 10 October 2026

Visit prompt-kit.com ↗

prompt-kit Primitives provides ready-to-use, composable fullstack blocks for React AI applications. Each primitive pairs a prebuilt UI component using Tailwind CSS and shadcn/ui with an API route powered by the Vercel AI SDK (v5). You can drop functional AI interfaces like streaming chatbots and tool-calling flows directly into your codebase using a single CLI command.

What it's for

  • Add a complete streaming chatbot interface to a React or Next.js app
  • Implement tool-calling and function invocation displays with input/output visualizers
  • Prototype AI chat interfaces without writing boilerplate UI or backend wiring

Features

  • Fullstack blocks pairing frontend UI components with backend API routes
  • Prewired integration with Vercel AI SDK v5
  • Installation via the shadcn registry CLI using a single URL command
  • Styled with Tailwind CSS and designed to match shadcn/ui ecosystems
  • Compatible with any modern React framework

Pricing

Open source. Free and open source

Details

Type
Web app
Category
Development
Topic
UI Components
Open source
Yes
Platforms
Code library, Web
For
React and Next.js frontend or fullstack developers building AI-powered interfaces
Alternative to
shadcn/ui, Assistant UI
Tags
react, shadcn, tailwind, ai sdk, chatbot, ui kit

Why it was saved

  • @Ibelick, 6 August 2025: Speeds up shipping AI apps: UI components from prompt-kit paired with API wiring for AI SDK v5, works with any React framework, one-command install.
  • @Ibelick, 6 August 2025: Lets a developer drop in production-ready AI chat and tool-calling UI without building from scratch; two install commands are shown verbatim in the video.

Compare

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Updated