PexelsNet is a .NET class library that provides an easy-to-use interface for the Pexels API

https://www.nuget.org/packages/PexelsNet/

var client = new PexelsClient("<Your Api key>");

The following example will grab all images for the term business using the default pagination (15 images).

var results = client.SearchAsync("business").Result; 
foreach (var image in results.Photos)
{
 Console.WriteLine(image.Src.Medium);
}

The following example will grab all popular images using the default pagination (15 images).

var results = client.PopularAsync().Result; 
foreach (var image in results.Photos)
{
 Console.WriteLine(image.Src.Medium);
}

By default, pexels will return 15 images but you can specify your own pagination.

The following example will grab 20 images from the 2nd page for the term business.

var page = client.SearchAsync("business", 2, 20).Result; 

The following example will grab 20 popular images from the 2nd page.

var page = client.PopularAsync(2, 20).Result;