eBay .NET SDK

using Apideck;
using Apideck.Api;
using Apideck.Model;

var config = new Configuration {
    ApiKey = Environment.GetEnvironmentVariable("APIDECK_API_KEY"),
    AppId = Environment.GetEnvironmentVariable("APIDECK_APP_ID"),
    ConsumerId = "user-123"
};

var apiInstance = new EcommerceApi(config);

// Connect to eBay
var result = await apiInstance.ConnectionsAllAsync(
    serviceId: "ebay"
);

// List data from eBay
var companies = await apiInstance.CompaniesAllAsync(
    serviceId: "ebay"
);

Console.WriteLine(companies);