> ## Documentation Index
> Fetch the complete documentation index at: https://www.alttextlab.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Installation

> Install the AltTextLab app in Webflow and connect your API key.

## Install from the Webflow Marketplace

**1. Open the app page**

Go to the [AltTextLab app page in the Webflow Marketplace](https://webflow.com/apps/detail/alt-text-lab).

**2. Install and authorize**

Click **Install** and authorize the app for your workspace or site.

**3. Open the app in the Designer**

Open your site in the Designer and go to **Apps → AltTextLab**.

![Webflow Designer Apps panel with the AltTextLab app](https://mintcdn.com/alttextlab/sGLtZfCuTUDjztZk/assets/webflow-install-apps-panel.png?fit=max\&auto=format\&n=sGLtZfCuTUDjztZk\&q=85\&s=d256e42dbf8da7838f009ec9b676796c)

**4. Add your API key**

On the **Connect your account** screen, create a free AltTextLab account if you don't have one, copy your API key, paste it into the **API key** field, and click **Connect account**.

You can find your API key in the [AltTextLab dashboard](https://app.alttextlab.com/settings/api-keys). See [API key](https://www.alttextlab.com/docs/api/api-key.md) for instructions on creating and managing keys.

**5. Configure language and style**

Before generating alt text, choose your language and writing style in [Settings](https://www.alttextlab.com/docs/integrations/webflow/settings.md).

> [!NOTE]
>
> The app stores your API key in your browser, not in Webflow or on AltTextLab servers. If you use another browser, profile, or computer, connect again. To disconnect, go to **Settings** and remove the key.

> [!NOTE]
>
> AltTextLab downloads each image by its URL, so the image must be publicly accessible. Webflow asset URLs are public by default.

## Open the app

The app runs only while it's open. Open it from **Apps → AltTextLab** each time you work in the Designer.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.