React AI API Playground Block

React AI API playground block for Next.js with configuration panel, JSON preview, and request testing using shadcn/ui and Tailwind CSS

Test and iterate on AI API requests with this interactive playground block for React and Next.js. Features a split layout with model selection, temperature and max tokens sliders, system prompt textarea on the left, and a tabbed request/response JSON preview on the right. Includes a Send Request button with loading state. Built with TypeScript, shadcn/ui Select, Slider, Textarea, Card, Tabs, and Button components, AI SDK patterns, and Tailwind CSS.

React AI API Playground Block preview

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Installation

Install

Pro block

npx shadcn@latest add https://www.shadcn.io/r/ai-api-playground.json

npx shadcn@latest add https://www.shadcn.io/r/ai-api-playground.json

pnpm dlx shadcn@latest add https://www.shadcn.io/r/ai-api-playground.json

bunx shadcn@latest add https://www.shadcn.io/r/ai-api-playground.json

AI Message

Chat message component

AI Reasoning

Thinking display

AI Actions

Action toolbar

AI Loader

Loading spinner

FAQ

Last updated on March 15, 2026

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React AI API Playground Block