There is no official .NET package. HttpClient with System.Net.Http.Json covers the API in a few lines.

Install

// nothing to install - HttpClient is part of .NET

Your first screenshot in C#

One POST, one JSON body, one URL back. The response is a CDN link to the finished image.

HttpClient

using System.Net.Http.Json;

using var client = new HttpClient
{
    Timeout = TimeSpan.FromSeconds(60)
};
client.DefaultRequestHeaders.Add("X-API-Key", "sk_live_YOUR_KEY");

var response = await client.PostAsJsonAsync(
    "https://api.getsnap.dev/v1/screenshot",
    new { url = "https://github.com", format = "png" });

response.EnsureSuccessStatusCode();

var result = await response.Content.ReadFromJsonAsync<ShotResult>();
Console.WriteLine(result!.Url);   // CDN URL to your screenshot

record ShotResult(string Url);

Full-page captures and other options

Every option is a field in the same JSON body. The common ones are full-page capture, popup and ad removal, viewport size, and lazy-load scrolling.

var response = await client.PostAsJsonAsync(
    "https://api.getsnap.dev/v1/screenshot",
    new
    {
        url             = "https://example.com",
        format          = "png",
        full_page       = true,
        remove_popups   = true,
        block_ads       = true,
        viewport_width  = 1280,
        viewport_height = 720,
    });

Saving the image to disk

By default you get a CDN URL. Ask for a binary response instead and you get the bytes directly, which saves a round-trip when you are storing the file yourself.

var response = await client.PostAsJsonAsync(
    "https://api.getsnap.dev/v1/screenshot",
    new
    {
        url           = "https://example.com",
        format        = "webp",
        quality       = 90,
        response_type = "binary",
    });

await using var file = File.Create("screenshot.webp");
await response.Content.CopyToAsync(file);

Handling errors

Every failure returns JSON with an error code and a human-readable message. These are the ones worth branching on:

Status	error	What it means
400	validation_error	A field is missing or out of range. The body names the field.
401	unauthorized	Missing or unknown API key.
402	quota_exceeded	Monthly capture limit reached.
429	rate_limit_exceeded	Too many requests this minute. Back off and retry.
500	capture_failed	The page could not be rendered - usually a timeout on a page that never settles.

var response = await client.PostAsJsonAsync(
    "https://api.getsnap.dev/v1/screenshot",
    new { url = "https://example.com" });

if (!response.IsSuccessStatusCode)
{
    // e.g. {"error":"rate_limit_exceeded","message":"..."}
    var problem = await response.Content.ReadAsStringAsync();
    throw new InvalidOperationException(
        $"{(int)response.StatusCode} {problem}");
}

Rate limits and quotas

Plan	Captures / month	Requests / minute
Free	100	5
Starter	5,000	30
Pro	25,000	60
Business	100,000	120

Exceeding the per-minute limit returns 429; exceeding the monthly quota returns 402. See pricing for the full breakdown.

Frequently asked questions

Next steps

• Code examples — every feature, with cURL, Node.js and Python tabs
• API reference — every request field and response shape
• Playground — try a capture in the browser before writing any C#
• Pricing — plans, quotas and overage

Related reading

• Best screenshot API in 2026 — how the managed options compare