How to Set Up Proxies in C# / .NET (HttpClient)

using System.Net;
using System.Net.Http;

var proxy = new WebProxy("http://host:port")
{
    Credentials = new NetworkCredential("user", "pass"),
};

var handler = new HttpClientHandler { Proxy = proxy, UseProxy = true };
using var client = new HttpClient(handler);

var body = await client.GetStringAsync("https://httpbin.org/ip");
Console.WriteLine(body);

In .NET you configure a WebProxy with NetworkCredential and hand it to an HttpClientHandler, which keeps authenticated proxies fully native with no extra packages. Reuse a single HttpClient across requests to avoid socket exhaustion, and construct separate handlers when you need distinct exit endpoints for rotation. For SOCKS5, WebProxy accepts a socks5:// URI on modern .NET (Core 3.1 and later).

C# / .NET (HttpClient) works cleanly with rotating backconnect endpoints — point it at a single gateway host and the provider rotates the exit IP for you.

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