.NET / C# Integration

Using HttpClient.

using System.Net.Http.Json;

public class CheckEmailService
{
    private readonly HttpClient _httpClient;
    private const string ApiKey = "ce_d_YOUR_KEY";

    public CheckEmailService(HttpClient httpClient)
    {
        _httpClient = httpClient;
    }

    public async Task<bool> IsEmailValid(string email)
    {
        _httpClient.DefaultRequestHeaders.Clear();
        _httpClient.DefaultRequestHeaders.Add("x-api-key", ApiKey);

        var response = await _httpClient.GetAsync($"https://api.checkemail.dev/validate?email={Uri.EscapeDataString(email)}");
        
        if (response.IsSuccessStatusCode)
        {
            var data = await response.Content.ReadFromJsonAsync<ApiResponse>();
            var confidence = data?.Confidence;
            var validations = data?.Validations;

            if (confidence?.Status == "DISPOSABLE" || validations?.IsDisposable == true) return false;
            
            // Access alias info
            if (confidence?.AliasStatus == "ALIAS_CONFIRMED") {
                var canonical = confidence.CanonicalEmail;
            }

            return confidence?.Status == "LIKELY";
        }

        return false;
    }
}

public class Confidence {
    public int ConfidenceScore { get; set; }
    public string Status { get; set; }
    public string AliasStatus { get; set; }
    public string CanonicalEmail { get; set; }
    public bool IsRoleBased { get; set; }
}

public class Validations {
    public bool IsDisposable { get; set; }
}

public class ApiResponse {
    public Confidence Confidence { get; set; }
    public Validations Validations { get; set; }
}