# Klyv Activity Heatmap

> A calendar density grid. It answers a question no chart here answers well: when did this happen, across months, at a glance.

- Author: [klyv-ui](https://21st.dev/@klyv-ui)
- License: mit
- Tags: Ui, Interactive
- Live preview: https://21st.dev/@klyv-ui/components/klyv-activity-heatmap

## Install

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