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

# AltText.ai - How do I link my account?

## Overview

To authenticate with AltText.ai, you need:

1. **API Key** — an AltText.ai API key. A site key or a full-access key both work.

This guide will show you how to create one.

### Prerequisites

* An AltText.ai account. Every new account starts with 25 free credits, no credit card required. If you don't have an account, [sign up](https://alttext.ai/users/sign-up).

### Step 1: Create an API key

1. Sign in to [AltText.ai](https://alttext.ai/users/sign-in).
2. Open **Integrations** > **API Keys** ([direct link](https://alttext.ai/account/api_keys)) and click **New API Key**.

![AltText.ai API Keys tab with the New API Key button](https://mintcdn.com/nango/fQLao10hmcmF9ZnH/api-integrations/alttext-ai/api_keys_page.png?fit=max\&auto=format\&n=fQLao10hmcmF9ZnH\&q=85\&s=880ae15056c1ec1f2dab5481dca8bbe7)

3. Enter a name for the key. Keep **Site key** selected for a key that generates alt text, or pick **Full access** for a key that can also manage other keys. Then click **Create Key**.

![AltText.ai New API Key form with the key name and the Site key and Full access options](https://mintcdn.com/nango/fQLao10hmcmF9ZnH/api-integrations/alttext-ai/new_api_key_form.png?fit=max\&auto=format\&n=fQLao10hmcmF9ZnH\&q=85\&s=5731ba7668e6d904e02ceb5fc71ee1c1)

4. On the **API Keys** list, click the key's masked token to copy it. The token starts with `atai_`.

![AltText.ai API Keys list showing the new key and its masked token to copy](https://mintcdn.com/nango/fQLao10hmcmF9ZnH/api-integrations/alttext-ai/api_key_created.png?fit=max\&auto=format\&n=fQLao10hmcmF9ZnH\&q=85\&s=f27eb4bd63edfbfd5c3641155203080f)

### Step 2: Enter your API key in the Connect UI

1. Open the form where you need to authenticate with AltText.ai.
2. Enter your API key in the **API Key** field.
3. Submit the form, and you should be successfully authenticated.

![AltText.ai Connect UI form with the API Key field](https://mintcdn.com/nango/fQLao10hmcmF9ZnH/api-integrations/alttext-ai/form.png?fit=max\&auto=format\&n=fQLao10hmcmF9ZnH\&q=85\&s=7e305c712c39994cc7f6e83c2d97b8b4)

You are now connected to AltText.ai.


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