# Spaced Repetition Flashcards

> A flashcard study component that schedules each card's next review with the SM-2 spaced-repetition algorithm, previewing the interval each grade button would set and charting upcoming reviews.

- Author: [klyv-ui](https://21st.dev/@klyv-ui)
- Library: Klyv-UI
- License: MIT
- Tags: Education
- Live preview: https://21st.dev/@klyv-ui/components/spaced-repetition

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/klyv-ui/spaced-repetition?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/education.md