# Json Tree Viewer

Displays a nested, expandable visual explorer for structural JSON data objects.

## Surfaces

web, google-apps-script-web, mcp-apps

## Fields

| Field | Type |
|---|---|
| data | string. The raw valid JSON string to parse and render. |

## Example payload

```json
{
  "type": "json_tree_viewer",
  "data": "{\"key\": \"value\", \"count\": 42}"
}
```

Live page: https://a2uicatalog.ai/atoms/json_tree_viewer/
Full field contract: https://a2uicatalog.ai/spec.json