# Button

> A versatile button component with multiple variants and sizes, including muted, accent, and icon sizes, built on Radix Slot for use as any element via asChild.

- Author: [joyco](https://21st.dev/@joyco)
- Library: @joyco
- License: MIT
- Tags: Button, Cva, Action, Ui
- npm dependencies: @radix-ui/react-slot, class-variance-authority
- Live preview: https://21st.dev/@joyco/components/button

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/joyco/button?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/button.md