# Chord

> Flows between peers, around a circle. Sample data: bridged volume between five chains, Base +$319M net in, Polygon −$146M net out.

- Type 048 · Flow between steps
- Component: `<Chord>`, the same name as the Figma component
- Install: `npx shadcn add @chartory/chord` (free in Hearth: the public registry, no token; Signal with Code and Complete)
- Type page: https://usechartory.com/charts/chord

## Installation

1. **Set up the registry once.** This chart is free in Hearth and MIT licensed: no token. Add @chartory to components.json once (the URL alone, no headers), or skip this when another chart is already installed. [Installation guide](https://usechartory.com/docs/installation)

2. **Add the chart.** One command adds the Chord component to your project.

```bash
npx shadcn add @chartory/chord
```

3. **Use it.** Pass your rows. The props are the Figma properties.

usage.tsx:

```tsx
import { Chord }
  from "@/components/chartory/chord"

<Chord
  data={bridgeFlows}
  size="m"
/>
```

## Props

### `<Chord>`

Every prop but data is a Figma property with the same name and values.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| data | ChordData | Required | The chart's data. The tables below list every field. |
| size | "xs" \| "s" \| "m" \| "l" | "m" | The size class. Each one is laid out again from the data. |
| color | "cat-1" \| "cat-2" \| "cat-3" \| "cat-4" | "cat-1" | The data colour of the primary marks (data/primary). |

### ChordData

The data prop: one object for the whole chart.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| fmt | (v: number) => string | Required | Formats a value for its label. |
| nodes | ChordNode[] | Required | One entry per node. |
| flows | [number, number, number][] | Required | The flows: [from index, to index, value]. |

### ChordNode

One object per entry in nodes.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| label | string | Required | The name shown on the chart. |
| tok | string | Required | The colour token, e.g. "data/primary". |

## Chord diagram: a React and Figma chart in four sizes

### What does a chord diagram show?

A chord diagram places groups around a circle and joins them with ribbons sized by what flows between them, with each group's net in or out. Use it for bridged volume between chains, trade between regions or moves between teams.

Chartory ships it as a Figma component and a React component with the same name. The code installs from the shadcn registry with one command and lands in your project as a file you own.

### What is the Chord component?

It is one **<Chord>** component. Its props are the Figma properties with the same names and values, and the props table above lists them. The data is amounts between every pair of groups.

Sizes **XS**, **S**, **M** and **L** re-lay the chart out from the data instead of scaling it, so labels stay readable at every size.

### When should I use it?

- **Do flows run both ways between peers?** Yes means the chord fits.
- **Is the circle useful?** Yes means the chord fits.
- **Is it flows, not correlation?** Yes means the chord fits.

### When does another type fit better?

- **Sources to outcomes.** Use Sankey instead.
- **Groups on one line.** Use Arc diagram instead.
- **Pairs that move together.** Use Correlation triangle instead.

## Chord questions

### Does the Chord chart work with shadcn/ui?

Yes. It installs through the shadcn registry with the shadcn CLI, and the file lands in your project.

### How do I install it?

It is free in Hearth and MIT licensed: add the @chartory registry URL once, no token, then run npx shadcn add @chartory/chord. The Installation guide has the steps.

### Can my coding agent install it?

Yes. Connect the Chartory MCP server and ask for the chord chart; the agent runs the same command and you review the diff.

### What data does it expect?

Amounts between every pair of groups. The sample data comes with the component, and the props table lists every field.

### Which sizes does it ship in?

XS, S, M and L, in Figma and in code. Each size is laid out again from the data, so text and lines keep their size.

### Is it in the Figma file too?

Yes. chart/048-chord-bridge-flows has the same properties as the component.

### Does it follow light and dark mode?

Yes. Every paint is a token, so the chart follows light and dark mode and the collection you pick.

### Which plan has the code?

None for Hearth: it is free in the public registry, no token. The Signal collection (@chartory/signal) comes with Code and Complete.