> For the complete documentation index, see [llms.txt](https://dev.ubidots.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.ubidots.com/dashboards-and-widgets/html-canvas/built-in-library/api.md).

# API

Access the Ubidots JavaScript SDK from HTML Canvas

## JavaScript SDK

The HTML Canvas built-in library exposes the [Ubidots JavaScript SDK](/sdks/javascript.md) through `ubidots.api`. This simplifies interactions with the Ubidots API when you develop in HTML Canvas. It avoids manual requests and custom wrappers.

Use the following syntax to access SDK methods:

```
ubidots.api.<JS_SDK_METHODS>
```

{% hint style="info" %}
See the [JavaScript SDK docs](/sdks/javascript.md) for supported entities, methods, and filtering capabilities.
{% endhint %}

## Usage

**With** [**Preload dashboard data**](/dashboards-and-widgets/html-canvas/preload-dashboard-data.md) **enabled:**

```javascript
// Get the token from the Ubidots built-in library
const TOKEN = ubidots.token;

// Authenticate the SDK with the token
ubidots.api.authenticate(TOKEN);

// Get the first 100 devices in the account
ubidots.api.devices.get().then((devices) => {
    // Print an array of Device objects
    console.log(devices);
    
    // YOUR LOGIC FOR THESE 100 DEVICES
});
```

**With Preload dashboard data disabled:**

```javascript
var ubidots = new Ubidots();

let TOKEN;

ubidots.on("ready", async () => {
    TOKEN = ubidots.token;
    
    // Authenticate the SDK with the token
    ubidots.api.authenticate(TOKEN);
    
    // Get the first 100 devices in the account
    var devices = await ubidots.api.devices.get();
    
    // Print an array of Device objects
    console.log(devices);
    
    // YOUR LOGIC FOR THESE 100 DEVICES
});
```


---

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