Connectivity help through API C# RestSharp with API Key / API Secret Key

Hi,

I pasted the link below with API key and Secret key in Incognito mode and I was able to see the products json reply.

https://xx:key@bmswave.myshopify.com/admin/api/2021-07/products.json

How do I access API Admin screen where I see Api key and password? I see API Key and Secret key not password.

I got this credentials generated from Apps menu under https://partners.shopify.com

Not sure if I am generating credential from correct place.

Thanks for your help!