Add an in-app AI assistant to your website with one script tag
Last updated 13 October 2026
Rendel is a Generative UI SDK for Flutter and web apps. On the web it is one script tag in any site, plain HTML, React, Vue, Next.js or a CMS theme, and answers with interactive components built from your site's own data and actions.
What your visitors get
Every one of the 36 catalog components, drawn in your page with its own isolated styles, so the answer is a product card, a form or an order tracker rather than a paragraph.
React, Vue, Next.js and the rest
The SDK is framework-neutral: it loads from a script tag and talks to your page through a small JavaScript API, so it sits beside React, Vue, Next.js or a server-rendered site without a build step of its own.
Control and data
Actions run as the signed-in user against your own API, and every change waits for the user's yes on a confirmation card our server builds. Conversations are stored in Frankfurt; emails and card numbers that users type are masked before the model sees them.
Questions
Is there an npm package?
Not yet. Today the web SDK is a script tag served from rendel.ai, versioned in its path.
Can it open pages of my site?
Yes. You register the routes it may open, and it navigates through your own router.