# Using the Package

Our NPM package allows you to add 3D models to your website.

## \<Echo/> Component

This package contains only one component, a 3D model viewer built using [google model-viewer](https://modelviewer.dev/).&#x20;

This component can be configured with an `apiKey` and `entryID` to stream and display models from the echo3D platform as well as a direct `src` URL to display local or cloud files. Common `<model-viewer/>` configuration parameters are also exposed.

### Required Parameters

You must provide `src` or both `apiKey` and `entryID`.

`src`: Element will make no query and pass this URL directly to

`apiKey`: Your echo3D project [API key](/quickstart/get-api-key.md), e.g. `your-key-1234`.

`entryID`: The entry ID of the hologram you would like to display

### Optional Parameters

`className`: The CSS classes that will be applied to the element. If no classes are provided, the component will default to a 600px height viewer.

`securityKey`: provide your security key if it is enabled for your project

`disableZoom`: When defined, disables zoom (camera controls must be enabled)

`cameraOrbit`: The starting focal point of the viewer

`cameraControls`: When defined, camera controls for the viewer are disabled

`autoRotate`: When defined, automatic rotation of the model is disabled

`tapToCenter`: When defined, tap-to-recenter behavior is enabled

## Code Example

```html
<Echo
   apiKey="YOUR-API-KEY"
   entryID="dbe31c16-hero.glb"
/>
```

<figure><img src="/files/GkZq5AsZvpDSmSlhKX0l" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/7GIe4d7bcLycI1fclWbP" alt=""><figcaption></figcaption></figure>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.echo3d.com/web/using-the-package.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.