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

# Authorisation

> Learn how to authenticate with the Antei API using Bearer tokens.

<Icon icon="lock-keyhole" size={26} color="#4B5563" />

To access the Antei API, all requests must be authenticated using an API key. We use **Bearer Token** authentication, which is passed via the `Authorization` header.

## Creating an API Key

You can generate API keys from your Antei dashboard:

**Settings → Integrations → Create API Key**

There are two types of keys available:

* **Live Key** – Use for real transactions in production
* **Sandbox Key** – Use for testing in a non-production environment

> Treat your API keys like passwords. Never expose them in public codebases or client-side code.

***

## Base URLs

| Environment | Base URL                    |
| ----------- | --------------------------- |
| **Live**    | `https://api.antei.com`     |
| **Sandbox** | `https://sandbox.antei.com` |

***

## Authorization Header

Add the following header to every API request:

```Authorisation theme={null}
Authorization: Bearer YOUR_API_KEY
```

Make sure to replace `YOUR_API_KEY` with your actual key.

***

## Error Handling

If your API key is missing or invalid, the API will return a:

* **401 Unauthorized** – when the token is missing or incorrect
* **403 Forbidden** – if the key doesn’t have permission for the requested resource

Ensure you're using the correct environment-specific key and that the scopes are valid.