> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upmind.com/llms.txt
> Use this file to discover all available pages before exploring further.
# How to Link OpusDNS to Upmind
> Integrate OpusDNS domain registrar with Upmind.
[OpusDNS](https://www.opusdns.com/) is a DNS management platform that allows you to manage DNS zones, records, and configurations for domains.
## Acquiring credentials
1. Log in at [app.opusdns.com](http://app.opusdns.com).
2. Go to **Developer** > **API Credentials** and click **New API Credential**.
3. Click **Create** and copy the **API Key**.
## **Linking to OpusDNS**
1. In Upmind, navigate to **Host Control** > **Domain names** > **Registrars**.
2. Click on **OpusDNS**.
3. Enter a **Name**. This identifier is not visible to clients. We recommend entering the name **OpusDNS** unless you have two separate accounts that you want to label differently.
4. Enter the **API Key**.
5. Click **Create**.
6. Verify the information on the [Domain Settings](/for-web-hosts/domain-names/how-to-input-domain-settings) page.
That’s it! Your account is now linked. You can now create a TLD available for sale by following this guide on [how to create TLDs](/for-web-hosts/domain-names/how-to-add-a-tld).