# Test For number

> hello 21st

- Author: [shalomeir](https://21st.dev/@shalomeir)
- Library: shalomeir
- License: unknown
- Live preview: https://21st.dev/@shalomeir/components/test-for-number

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/shalomeir/test-for-number?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