> For the complete documentation index, see [llms.txt](https://docs.0xprocessing.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.0xprocessing.com/quick-start/api-setup.md).

# API setup

Learn how to configure the API for our crypto payment gateway, enabling smooth integration and full utilization of its features for your business.

1. Navigate to the **Settings menu.**
2. Open the API integration section.
3. Find the section called **“API key”** and click **"Generate key"**.

<figure><img src="https://3581776959-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFe844yi2U8Swnqhi7iE8%2Fuploads%2FtXBn53BeRt69VoK4s2Vm%2Fphoto_2023-02-20_13-12-28.jpg?alt=media&#x26;token=98c20916-1e7c-4d57-957f-a780ad317525" alt=""><figcaption></figcaption></figure>

{% hint style="danger" %}
Copy the API key and store it securely. For security reasons, it cannot be displayed again. If you generate a new key, the previous key stops working.
{% endhint %}

Use this API key to authorize requests for the available payment methods and withdrawals from the merchant balance.

[API documentation](/0xprocessing-api-v1/obtaining-api-keys.md)