.NET

using System.Net.Http.Headers;using System.Text;using System.Text.Json;var apiKey = Environment.GetEnvironmentVariable("FIRECRAWL_API_KEY");var client = new HttpClient();client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", apiKey);var content = new StringContent(    JsonSerializer.Serialize(new { query = "firecrawl web scraping", limit = 5 }),    Encoding.UTF8,    "application/json");var response = await client.PostAsync("https://api.firecrawl.dev/v2/search", content);var json = await response.Content.ReadAsStringAsync();Console.WriteLine(json);

var scrapeContent = new StringContent(    JsonSerializer.Serialize(new { url = "https://example.com" }),    Encoding.UTF8,    "application/json");var scrapeResponse = await client.PostAsync("https://api.firecrawl.dev/v2/scrape", scrapeContent);var scrapeJson = await scrapeResponse.Content.ReadAsStringAsync();using var doc = JsonDocument.Parse(scrapeJson);var markdown = doc.RootElement.GetProperty("data").GetProperty("markdown").GetString();Console.WriteLine(markdown);

var sessionContent = new StringContent(    JsonSerializer.Serialize(new { url = "https://www.amazon.com", formats = new[] { "markdown" } }),    Encoding.UTF8,    "application/json");var sessionResponse = await client.PostAsync("https://api.firecrawl.dev/v2/scrape", sessionContent);var sessionJson = await sessionResponse.Content.ReadAsStringAsync();using var sessionDoc = JsonDocument.Parse(sessionJson);var scrapeId = sessionDoc.RootElement    .GetProperty("data")    .GetProperty("metadata")    .GetProperty("scrapeId")    .GetString();Console.WriteLine($"scrapeId: {scrapeId}");

var interactUrl = $"https://api.firecrawl.dev/v2/scrape/{scrapeId}/interact";// Search for a productvar searchBody = new StringContent(    JsonSerializer.Serialize(new { prompt = "Search for iPhone 16 Pro Max" }),    Encoding.UTF8,    "application/json");var searchResult = await client.PostAsync(interactUrl, searchBody);Console.WriteLine(await searchResult.Content.ReadAsStringAsync());// Click on the first resultvar clickBody = new StringContent(    JsonSerializer.Serialize(new { prompt = "Click on the first result and tell me the price" }),    Encoding.UTF8,    "application/json");var clickResult = await client.PostAsync(interactUrl, clickBody);Console.WriteLine(await clickResult.Content.ReadAsStringAsync());

await client.DeleteAsync(interactUrl);Console.WriteLine("Session stopped");

using System.Net.Http.Headers;using System.Text;using System.Text.Json;public class FirecrawlClient{    private readonly HttpClient _http;    private const string BaseUrl = "https://api.firecrawl.dev/v2";    public FirecrawlClient(string apiKey)    {        _http = new HttpClient();        _http.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", apiKey);    }    private async Task<JsonDocument> PostAsync(string endpoint, object payload)    {        var content = new StringContent(            JsonSerializer.Serialize(payload),            Encoding.UTF8,            "application/json"        );        var response = await _http.PostAsync($"{BaseUrl}{endpoint}", content);        response.EnsureSuccessStatusCode();        var json = await response.Content.ReadAsStringAsync();        return JsonDocument.Parse(json);    }    public async Task<JsonDocument> ScrapeAsync(string url)    {        return await PostAsync("/scrape", new { url });    }    public async Task<JsonDocument> SearchAsync(string query, int limit = 5)    {        return await PostAsync("/search", new { query, limit });    }}// Usagevar firecrawl = new FirecrawlClient(Environment.GetEnvironmentVariable("FIRECRAWL_API_KEY")!);var result = await firecrawl.SearchAsync("firecrawl web scraping");Console.WriteLine(result.RootElement);