> For the complete documentation index, see [llms.txt](https://gl-docs.gitbook.io/zkpass/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gl-docs.gitbook.io/zkpass/zkpass-developers-guide/zkpass-overview/api-key.md).

# API Key

You need an API key and a secret key to use the zkPass service. Register on the [zkPass portal](https://portal.ssi.id/en) to obtain your API and secret keys.

{% hint style="warning" %}
Please keep your API Key and Secret Key safe—don't share them with anyone else
{% endhint %}