# Constellation Field

> An animated canvas background of drifting, pointer-reactive particle nodes connected by fading constellation lines, used behind hero/landing sections.

- Author: [Meng To](https://21st.dev/@mengto)
- Library: [ThreeUI](https://21st.dev/@mengto/library/threeui)
- License: MIT
- Tags: Background, Canvas, Particle, Constellation
- Live preview: https://21st.dev/@mengto/components/constellation-field

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/mengto/constellation-field?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/background.md