# Scatter Chart

> Scatter and bubble chart: points pop in, the pointer picks the nearest point (no pixel hunting) with guides and value pills on both axes, legend chips toggle groups without moving the scales, and an optional least-squares trend line with r and median quadrants with captions explain the cloud. Arrow keys step through points.

- Slug: `scatter-chart`
- Category: [Charts](https://assembli-rho.vercel.app/category/charts.md)
- Type: component
- Tags: scatter, bubble, correlation, quadrant, trend-line, svg
- npm dependencies: motion
- shadcn/ui dependencies: none
- Added: 2026-10-21
- Live preview: https://assembli-rho.vercel.app/preview/scatter-chart
- Page: https://assembli-rho.vercel.app/components/scatter-chart

## Install

One-time setup (needs a subscription):

1. Add the registry to the project's `components.json`: `{"@assembli":{"url":"https://assembli-rho.vercel.app/r/{name}.json","headers":{"Authorization":"Bearer ${ASSEMBLI_API_KEY}"}}}` (merge into `"registries"`).
2. Put an API key from https://assembli-rho.vercel.app/account in `.env.local` as `ASSEMBLI_API_KEY=asm_…`.

Then install with the shadcn CLI (writes `components/scatter-chart/scatter-chart.tsx` and installs dependencies):

```bash
npx shadcn@latest add @assembli/scatter-chart
```

Registry item JSON: https://assembli-rho.vercel.app/r/scatter-chart.json (send `Authorization: Bearer <api key>`)

## Code

> Component source needs an Assembli subscription ($12/month) and an API key sent as `Authorization: Bearer <key>`. To get one without copying anything, POST https://assembli-rho.vercel.app/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://assembli-rho.vercel.app/api/agent/token for the key. Or subscribe at https://assembli-rho.vercel.app/pricing and create a key at https://assembli-rho.vercel.app/account.