**Cost**: 13 credits per successful call.

Turn a single UI screenshot into an editable, hierarchical design tree — the same representation Codia Studio uses internally and the foundation that downstream code-generation, Figma-import, and layer-decomposition workflows are built on.

## Request options

This endpoint supports two input modes:

1. **JSON URL mode**: send `application/json` with `image_url` when the image is already publicly reachable.
2. **Direct upload mode**: send `multipart/form-data` with a local image file in the `image` field. The compatible field name `file` is also accepted. Codia checks credits before reading and uploading the file, so insufficient-credit requests return `402` without uploading anything.

JSON example:

```bash
curl 'https://openapi.codia.ai/v2/open/image_to_design' \
  -H 'Authorization: Bearer {codia_api_key}' \
  -H 'Content-Type: application/json' \
  --data '{ "image_url": "https://example.com/screenshot.png" }'
```

Direct upload example:

```bash
curl 'https://openapi.codia.ai/v2/open/image_to_design' \
  -H 'Authorization: Bearer {codia_api_key}' \
  -F 'image=@./screenshot.png'
```

## What this API is for

Given a public image URL of a UI (mobile screen, desktop page, dashboard, marketing hero — anything pixel-based), the service runs detection + layout reconstruction and returns a tree of **`VisualElement`** nodes that mirror how a designer would have built the screen in Figma or Sketch:

- Every visible region becomes a node with a position, a size, and a style.
- Container/child relationships are preserved (e.g. a card holds its title, body, and CTA).
- Layout intent (Flex vs. Absolute), text typography (font, size, weight, color), shapes, images, and effects are all reified into structured fields — not flattened into a single bitmap.

Typical use cases:
- **Image → code / image → Figma**: walk the tree and emit React / HTML / Figma nodes.
- **Design QA**: diff a screenshot against a spec by comparing structured trees.
- **Layer extraction**: feed the tree into downstream tools (e.g. our PDF/PPT pipeline or your own renderer).
- **Agent / LLM workflows**: give a model a structured layout instead of raw pixels so it can reason about "the price label sits inside the product card."

## How the response is shaped

The response uses the standard Codia envelope (`code`, `message`, `data`). On success `code = 0` and `data` contains two fields:

| Field | What it is | How to use it |
|---|---|---|
| `data.configuration` | Global rendering settings — `baseWidth`, `measurementUnit` (`px` \| `pt`), `scalingFactor`. | Multiply every numeric value in the tree by `scalingFactor` when rendering. Treat `baseWidth` as the canvas width the tree was measured against (375 for mobile, 1440 for desktop, etc.). |
| `data.visualElement` | The **root** of the visual tree. Always an `elementType: "Body"` node whose `childElements` recursively contain the rest of the page. | Traverse depth-first. The fields you care about per node depend on `elementType` (see below). |

## Walking the `VisualElement` tree

Each node has the same shape, but a handful of fields are populated based on `elementType`:

| `elementType` | Populated content fields | Typical meaning |
|---|---|---|
| `Body` | `layoutConfig`, `styleConfig` | Root of the page / artboard |
| `Layer` | `layoutConfig`, `styleConfig` | Generic container (card, section) |
| `Group` | `childElements` | Pure grouping, no own visuals |
| `Text` | `styleConfig.textConfig`, `contentData.textValue` | A run of text |
| `Image` | `contentData.imageSource` | Raster image (URL) |
| `Vector` | `contentData.vectorData` | Vector shape (mostly PDF; image_to_design uses `Image` / `Layer` for shapes) |
| `Component` | `componentSpec`, `contentData.componentReference` | Reusable detected component |

For every node:
- **`elementId` / `elementName`** — stable identifier + human label. Use `elementId` as your React `key` or Figma node id.
- **`childElements`** — array of nested `VisualElement`s. Empty leaf for text/image. Recurse here.
- **`processingMeta.detectionScore`** — confidence in `[0, 1]`. Filter or warn on low-confidence nodes when generating production code.
- **`processingMeta.surfaceArea`** — pixel area; useful for sorting or pruning tiny artifacts.

### `layoutConfig` — where the node sits

- `positionMode`:
  - `"Flex"` — the node participates in its parent's flex layout. Read `flexAttributes` (`flexDirection`, `alignItems`, `justifyContent`, `flexWrap`) on the **parent** to know how children flow.
  - `"Absolute"` — positioned at exact coordinates. Read `absoluteAttrs.coord` for the offset relative to the parent.
  - `"Normal"` / `"Relative"` — document-flow positioning (rare on this endpoint; common at the root).
- `flexibleMode` — present on containers, identifies the flex variant the detector chose.

In practice, the root `Body` is `Flex` and most children inherit Flex from their parent, so a naive emitter that maps `positionMode` → CSS `display: flex` + `position: absolute` will reproduce the layout faithfully.

### `styleConfig` — what the node looks like

This is the largest object in the response. Group the fields by what they describe:

- **Size** — `widthSpec`, `heightSpec`. Each is a `DimensionSpec` with `sizing` (`FIXED` = exact px, `FILL` = stretch to parent, `FIT_CONTENT` = shrink to children) and a numeric `value`. Map `FIXED → width: Npx`, `FILL → flex: 1` (or `width: 100%`), `FIT_CONTENT → width: auto`.
- **Text** (on `Text` nodes) — `textConfig.{fontSize, fontStyle, fontFamily, lineHeight, letterSpacing, textAlign}` + `textColor` (a `VisualColor` with `rgbValues` and `hexCode`). `letterSpacing` is in CSS px against the detected font-size; Studio converts to a percentage at import time (Figma semantics).
- **Border** — `borderConfig.{borderWidth, borderStyle, borderColor, borderRadius}`. `borderRadius` is an array `[tl, tr, br, bl]`; collapse to a single value if all four are equal.
- **Background** — `backgroundConfig` is a `oneOf` with three shapes discriminated by `type`:
  - `"COLOR"` → solid fill via `backgroundColor`.
  - `"IMAGE"` → `imageUrl` + CSS-style `backgroundSize` / `backgroundPosition`.
  - `"LINEAR_GRADIENT"` → `deg` + `gradientStops[]` (each stop = `{color, position}` where `position` is 0–1).
- **Effects / transforms** — `effectsList` (shadows, blurs), `opacityLevel` (0–255 — divide by 255 for CSS), `rotationAngle` (degrees), `paddingValues`, `overflowMode`.

Fields tagged "PDF only" in the schema (`characterData`, `transformMatrix`, `cornerRadius`, `isRightToLeft`, `extendedMatrix`) are not produced by image_to_design — they're shared with `pdf_to_design` and you can ignore them here. Same for `boundingBox`, `displayOrder`, and `contentData.{svgTemplate, imageData, maskingMode, blendingType}`.

### `contentData` — what the node displays

Only populated on leaf-ish nodes:
- `textValue` — the actual string for `Text` nodes.
- `imageSource` — public URL for `Image` nodes (re-hosted on Codia's CDN; safe to embed).
- `componentReference` / `componentAttributes` — pointer + props for detected components, paired with `componentSpec` on the same node.

## A minimal traversal

```ts
function walk(node: VisualElement, depth = 0) {
  console.log('  '.repeat(depth), node.elementType, node.elementId,
    node.elementType === 'Text' ? node.contentData?.textValue :
    node.elementType === 'Image' ? node.contentData?.imageSource : '');
  node.childElements?.forEach(child => walk(child, depth + 1));
}
walk(response.data.visualElement);
```

## Inputs, limits, billing

- **Input** — either JSON with a single `image_url` pointing to a publicly fetchable PNG / JPG / WebP, or `multipart/form-data` with an `image` file. For direct upload, Codia checks credits before reading and uploading the file. Field name `file` is also accepted for compatibility. Maximum side length and file-size limits follow the global Codia API limits.
- **Billing** — consumes the unified Codia Open API balance (see `GET /v2/open/credits`). 13 credits per successful call.
- **Latency** — synchronous; typical end-to-end is single-digit seconds for mobile screens, longer for dense desktop pages.
- **Idempotency** — same image URL produces the same tree modulo `elementId` regeneration; do not rely on stable IDs across calls.

## Errors

Uses the standard envelope with non-zero `code` and a descriptive `message`. HTTP status codes:
- `400` — bad input (missing/invalid `image_url`, unreachable URL, unsupported MIME).
- `401` / `403` — missing / wrong / unauthorized API key.
- `402` — credit balance exhausted (top up via the dashboard or `/v2/open/auto_recharge`).
- `429` — rate-limited; back off and retry.
- `500` — internal error; safe to retry once.

### `measurementUnit`

Always `px` for `image_to_design` — screen captures and rasterised UI are inherently pixel-based.

> **Sync vs. async**
> This synchronous endpoint returns the result inline — the simplest path. For production pipelines that need webhook delivery, automatic retry with idempotency, or explicit task cancellation, call `POST /v2/open/tasks` with `operation=image_to_design` instead. Inputs and credit cost are identical to this v2 endpoint.

Clave opcional proporcionada por el usuario (hasta 255 caracteres). Si se indica, una respuesta correcta (2xx) se guarda en caché durante 7 días. Un reintento con la misma clave y un cuerpo de solicitud idéntico devuelve la respuesta en caché (sin cobrar créditos adicionales); un reintento con la misma clave pero un cuerpo distinto devuelve 409. Úsala para que reintentar un POST tras un fallo de red sea seguro. En las subidas multipart/form-data, las solicitudes se comparan por los campos del formulario y el contenido de los archivos, de modo que una subida reintentada se reproduce aunque el cliente elija un nuevo boundary multipart.

Idempotency-Key

URL pública de la imagen que se va a analizar. Debe ser un PNG, JPG o WebP que se pueda descargar directamente: las URL prefirmadas de S3 o de una CDN funcionan, pero fallarán las páginas que protegen el recurso tras un inicio de sesión o JavaScript. No existe un campo `image_base64` aparte; aloja la imagen primero.

image_url

Archivo de imagen local que se va a analizar. Úsalo cuando la imagen aún no esté alojada. El servidor comprueba los créditos antes de leer y subir el archivo. Por compatibilidad, también se acepta el nombre de campo `file`.

image

Conversión correcta. `data.visualElement` es el nodo raíz `Body` del árbol: recorre `childElements` de forma recursiva para llegar a cada región detectada. `data.configuration` contiene el ancho base del lienzo, la unidad y un factor de escala por el que debes multiplicar cada valor numérico antes de renderizar. Consulta la descripción de la operación más arriba para ver en detalle `elementType`, `layoutConfig`, `styleConfig` y `contentData`.

0 si la operación es correcta; los valores distintos de cero reflejan la familia de estado HTTP (400/401/402/403/429/500).

code

Estado legible. `"ok"` si la operación es correcta; en caso contrario, el motivo del error.

message

Raíz del árbol de diseño. Siempre `elementType: "Body"`. Sus `childElements` forman el resto de la página.

visualElement

Ajustes de renderizado a nivel de lienzo con los que se midió el árbol. Aplica `scalingFactor` a cada valor numérico al renderizar.

configuration

data

El cuerpo de la solicitud tiene un formato incorrecto o le faltan parámetros obligatorios

Falta la clave de API, no es válida o se ha revocado

El saldo de la cuenta es insuficiente o la suscripción ha caducado

La cuenta no tiene acceso a este endpoint

Idempotency-Key reutilizada con un cuerpo de solicitud distinto.

Límite de frecuencia alcanzado. Espera el número de segundos indicado en el encabezado `Retry-After` antes de reintentar.

Se ha producido un error inesperado en el servidor

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