# Chord Diagram

> Directed flows between groups drawn as ribbons inside a ring. Ribbons bloom in with a stagger, hovering or focusing a group isolates its flows and shows its share in the centre, and hovering a ribbon reads out both directions. Directly labelled, keyboard focusable, with a screen-reader matrix.

- Slug: `chord-diagram`
- Category: [Charts](https://www.assembli.design/category/charts.md)
- Type: component
- Tags: chord, flow, relationships, network, svg, interactive
- npm dependencies: motion
- shadcn/ui dependencies: none
- Added: 2026-10-15
- Live preview: https://www.assembli.design/preview/chord-diagram
- Page: https://www.assembli.design/components/chord-diagram

## Install

One-time setup (needs a subscription):

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

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

```bash
npx shadcn@latest add @assembli/chord-diagram
```

Registry item JSON: https://www.assembli.design/r/chord-diagram.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://www.assembli.design/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://www.assembli.design/api/agent/token for the key. Or subscribe at https://www.assembli.design/pricing and create a key at https://www.assembli.design/account.