> ## Documentation Index
> Fetch the complete documentation index at: https://docs.unseen.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# React SDK — Installation

> Install @unseen_fi/ui and peer dependencies React 18+.

Infrastructure is trustworthy; now expose **checkout UI**. Install **`@unseen_fi/ui`** before wiring [`UnseenProvider`](/sdk/react/provider-button) and **`UnseenPayButton`**.

## Package

<CodeGroup>
  ```bash npm theme={null}
  npm install @unseen_fi/ui
  ```

  ```bash pnpm theme={null}
  pnpm add @unseen_fi/ui
  ```

  ```bash yarn theme={null}
  yarn add @unseen_fi/ui
  ```
</CodeGroup>

**Peer dependencies:** `react` and `react-dom` ≥ 18.

**Next:** [Provider & button](/sdk/react/provider-button)