Screenshot API for C# and .NET

Capture screenshots and generate PDFs from any C#, ASP.NET Core, or .NET application with a single HTTP call. No Playwright NuGet packages, no Chromium to install — just HttpClient and a SnapAPI key.

Quick Start with HttpClient

using System.Net.Http.Json;

var client = new HttpClient();
client.DefaultRequestHeaders.Add("X-Api-Key", Environment.GetEnvironmentVariable("SNAPAPI_KEY"));

var response = await client.PostAsJsonAsync("https://api.snapapi.pics/v1/screenshot", new {
    url = "https://example.com",
    fullPage = true,
    width = 1280,
    height = 800,
    format = "png",
    blockAds = true
});

var result = await response.Content.ReadFromJsonAsync<ScreenshotResult>();
Console.WriteLine(result?.Url);

record ScreenshotResult(string Url, int Width, int Height, long Size);

ASP.NET Core Controller

[ApiController]
[Route("api/[controller]")]
public class ScreenshotController : ControllerBase
{
    private readonly IHttpClientFactory _httpClientFactory;
    private readonly IConfiguration _config;

    public ScreenshotController(IHttpClientFactory factory, IConfiguration config)
    {
        _httpClientFactory = factory;
        _config = config;
    }

    [HttpPost]
    public async Task<IActionResult> Capture([FromBody] CaptureRequest req)
    {
        var client = _httpClientFactory.CreateClient();
        client.DefaultRequestHeaders.Add("X-Api-Key", _config["SnapAPI:Key"]);

        var response = await client.PostAsJsonAsync(
            "https://api.snapapi.pics/v1/screenshot",
            new { url = req.Url, fullPage = req.FullPage, width = 1280 }
        );

        if (!response.IsSuccessStatusCode)
            return StatusCode((int)response.StatusCode);

        var result = await response.Content.ReadFromJsonAsync<ScreenshotResult>();
        return Ok(result);
    }
}

public record CaptureRequest(string Url, bool FullPage = false);
public record ScreenshotResult(string Url, int Width, int Height);

Typed Client with DI

// Services/SnapApiClient.cs
public class SnapApiClient
{
    private readonly HttpClient _client;

    public SnapApiClient(HttpClient client, IConfiguration config)
    {
        _client = client;
        _client.BaseAddress = new Uri("https://api.snapapi.pics/");
        _client.DefaultRequestHeaders.Add("X-Api-Key", config["SnapAPI:Key"]);
    }

    public async Task<string?> ScreenshotAsync(string url, bool fullPage = false)
    {
        var res = await _client.PostAsJsonAsync("v1/screenshot",
            new { url, fullPage, blockAds = true });
        res.EnsureSuccessStatusCode();
        var data = await res.Content.ReadFromJsonAsync<ScreenshotResult>();
        return data?.Url;
    }

    public async Task<string?> PdfAsync(string url, string format = "A4")
    {
        var res = await _client.PostAsJsonAsync("v1/pdf",
            new { url, format, printBackground = true });
        res.EnsureSuccessStatusCode();
        var data = await res.Content.ReadFromJsonAsync<PdfResult>();
        return data?.Url;
    }

    record ScreenshotResult(string Url);
    record PdfResult(string Url, string Base64);
}

// Program.cs
builder.Services.AddHttpClient<SnapApiClient>();

Pricing

Free: 200/mo. Starter $19/mo: 5K. Pro $79/mo: 50K. Business $299/mo: 500K. Get your free API key.