# Pro Blocks Now Support Base UI

> Every Pro Block is now available in a Base UI variant. Our registry automatically serves the right version for your project — Radix UI setups keep working with zero changes.

Published: 2026-07-06 · Author: Matt Wierzbicki · Canonical: https://www.shadcndesign.com/blog/pro-blocks-base-ui-support

shadcn/ui now ships with two primitive libraries: Radix UI and Base UI. As of July 2026, new shadcn/ui projects even default to Base UI. Starting today, our registry supports both — every Pro Block is available as a Radix UI variant and a Base UI variant, and the right one is served automatically based on your project setup.

## What's new

- **Base UI variants for all Pro Blocks.** Landing page, application, and e-commerce blocks are now available for projects built on the Base UI version of shadcn/ui.
- **Automatic variant selection.** You don't pick a variant manually. The shadcn CLI tells our registry which `style` your project uses (for example `base-nova` or `radix-vega`), and we serve the matching code.
- **One registry, one set of commands.** The install commands are identical for both libraries: `npx shadcn@latest add @shadcndesign/hero-section-1` just works.

## How it works

The shadcn CLI supports a `{style}` placeholder in registry URLs. Update the `registries` entry in your `components.json` to our new style-aware endpoint:

```json
{
  "registries": {
    "@shadcndesign": {
      "url": "https://www.shadcndesign.com/api/registry/styles/{style}/{name}",
      "headers": {
        "X-License-Key": "${SHADCNDESIGN_LICENSE_KEY}"
      }
    }
  }
}
```

When you install a block, the CLI replaces `{style}` with your project's style from `components.json`:

- Base UI styles (`base-vega`, `base-nova`, `base-maia`, …) receive the Base UI variants.
- Radix styles (`radix-vega`, `radix-nova`, …) and legacy styles (`new-york`, `default`) receive the Radix UI variants.

Because blocks import primitives from your local `@/components/ui` folder, everything stays consistent with the shadcn/ui components already installed in your project. Our [themes](/themes) are CSS-only and work with both libraries out of the box.

## Already using Pro Blocks with Radix?

Nothing changes for you. The existing registry URL (`https://www.shadcndesign.com/api/registry/{name}`) keeps working exactly as before and always serves the Radix UI variants. You only need the new URL if you want automatic Radix/Base UI selection — for example when starting a new Base UI project.

## Good to know

- [Templates](/docs/templates) are currently Radix UI only. Base UI variants are on our radar.
- Free blocks don't require a license key on the new endpoint either — see the [Pro Blocks docs](/docs/pro-blocks) for the free setup.

Check out the updated [installation docs](/docs/pro-blocks) to get started, and reach out at [hi@shadcndesign.com](mailto:hi@shadcndesign.com) if you run into anything.