> For the complete documentation index, see [llms.txt](https://apidocs.arionbanki.is/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://apidocs.arionbanki.is/open-data/access-and-authentication.md).

# Access and Authentication

## Access

To access the Open Data APIs, you will need to create an Open Data application on our [Developer Portal](https://developer.arionbanki.is/):

<figure><img src="https://3064866639-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhpttLD80zK8e6g3HuSsO%2Fuploads%2Fm9uUnHGXLTOI6GrnqAGB%2Fimage.png?alt=media&amp;token=2c67cc42-a04e-41d7-9e29-6edb5b59f4e9" alt=""><figcaption></figcaption></figure>

After creating the application, you will receive:

* API key
* Client ID
* Client Secret

Use these credentials to access the API.&#x20;

## Authentication

The API uses OAuth2.0 authentication. All the information needed to fetch an auth token are listed below:&#x20;

<table><thead><tr><th width="176">Field</th><th>Value</th></tr></thead><tbody><tr><td>Auth URL</td><td><a href="https://apigw.arionbanki.is/oauth/v2/oauth-token">https://apigw.arionbanki.is/oauth/v2/oauth-token</a></td></tr><tr><td>Grant type</td><td>client_credentials</td></tr><tr><td>Client ID</td><td>[Client ID]</td></tr><tr><td>Client Secret</td><td>[Client Secret]</td></tr><tr><td>Scope</td><td>openid</td></tr></tbody></table>