# Hover Trace Bar Chart

> An animated bar chart that traces the hovered bar's value with a spring-animated reference line and a live numeric readout.

- Author: [Legion Dev](https://21st.dev/@LegionWebDev)
- Library: [Evil Charts](https://21st.dev/@LegionWebDev/library/evil-charts)
- License: MIT
- Tags: Chart, Bar Chart, Recharts, Data Visualization, Hover
- npm dependencies: motion, recharts, @number-flow/react
- Live preview: https://21st.dev/@LegionWebDev/components/hover-trace-bar-chart

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/LegionWebDev/hover-trace-bar-chart?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/chart.md