Analyze a Page with AI

import requests

API_KEY = "YOUR_API_KEY"
PROMPT  = "Summarize the main value proposition of this page in 2 sentences. Then list the top 3 CTAs visible above the fold."

response = requests.get(
    "https://api.capturekit.dev/v1/analyze",
    headers={"x-api-key": API_KEY},
    params={"url": "https://stripe.com", "prompt": PROMPT},
)
data = response.json()
print(data)

const API_KEY = "YOUR_API_KEY";
const PROMPT  = "Summarize the main value proposition of this page in 2 sentences. Then list the top 3 CTAs visible above the fold.";

const params   = new URLSearchParams({ url: "https://stripe.com", prompt: PROMPT });
const response = await fetch(`https://api.capturekit.dev/v1/analyze?${params}`, {
  headers: { "x-api-key": API_KEY },
});
const data = await response.json();
console.log(data);

<?php
$apiKey = "YOUR_API_KEY";
$prompt = "Summarize the main value proposition of this page in 2 sentences. Then list the top 3 CTAs visible above the fold.";
$params = http_build_query(["url" => "https://stripe.com", "prompt" => $prompt]);

$ch = curl_init("https://api.capturekit.dev/v1/analyze?{$params}");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: {$apiKey}"]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);
print_r($data);

package main

import (
    "encoding/json"
    "fmt"
    "io"
    "net/http"
    "net/url"
)

func main() {
    params := url.Values{
        "url":    {"https://stripe.com"},
        "prompt": {"Summarize the main value proposition in 2 sentences. List the top 3 CTAs above the fold."},
    }
    req, _ := http.NewRequest("GET", "https://api.capturekit.dev/v1/analyze?"+params.Encode(), nil)
    req.Header.Set("x-api-key", "YOUR_API_KEY")

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()
    body, _ := io.ReadAll(resp.Body)

    var data map[string]any
    json.Unmarshal(body, &data)
    fmt.Println(data)
}

import java.net.URI;
import java.net.URLEncoder;
import java.net.http.*;
import java.nio.charset.StandardCharsets;

var client  = HttpClient.newHttpClient();
var prompt  = URLEncoder.encode("Summarize the value proposition in 2 sentences. List the top 3 CTAs above the fold.", StandardCharsets.UTF_8);
var request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.capturekit.dev/v1/analyze?url=https%3A%2F%2Fstripe.com&prompt=" + prompt))
    .header("x-api-key", "YOUR_API_KEY").GET().build();

var response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

using System.Net.Http;

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");

var prompt = Uri.EscapeDataString("Summarize the value proposition in 2 sentences. List the top 3 CTAs above the fold.");
var body   = await client.GetStringAsync(
    $"https://api.capturekit.dev/v1/analyze?url=https%3A%2F%2Fstripe.com&prompt={prompt}");
Console.WriteLine(body);

#[tokio::main]
async fn main() -> Result<(), reqwest::Error> {
    let data = reqwest::Client::new()
        .get("https://api.capturekit.dev/v1/analyze")
        .header("x-api-key", "YOUR_API_KEY")
        .query(&[
            ("url",    "https://stripe.com"),
            ("prompt", "Summarize the value proposition in 2 sentences. List the top 3 CTAs above the fold."),
        ])
        .send().await?.json::<serde_json::Value>().await?;

    println!("{:#?}", data);
    Ok(())
}

print(f"Page    : {data.get('title')}")
print(f"Preview : {data.get('screenshot_url')}")
print()
print("=== AI Analysis ===")
print(data.get("analysis", ""))

console.log(`Page    : ${data.title}`);
console.log(`Preview : ${data.screenshot_url}\n`);
console.log("=== AI Analysis ===");
console.log(data.analysis);

echo "Page    : {$data['title']}\n";
echo "Preview : {$data['screenshot_url']}\n\n";
echo "=== AI Analysis ===\n";
echo $data["analysis"] ?? "";

fmt.Printf("Page    : %v\nPreview : %v\n\n=== AI Analysis ===\n%v\n",
    data["title"], data["screenshot_url"], data["analysis"])

import org.json.*;

var d = new JSONObject(response.body());
System.out.printf("Page    : %s%nPreview : %s%n%n=== AI Analysis ===%n%s%n",
    d.getString("title"), d.getString("screenshot_url"), d.getString("analysis"));

using System.Text.Json;

var d = JsonDocument.Parse(body).RootElement;
Console.WriteLine($"Page    : {d.GetProperty("title")}");
Console.WriteLine($"Preview : {d.GetProperty("screenshot_url")}\n");
Console.WriteLine("=== AI Analysis ===");
Console.WriteLine(d.GetProperty("analysis"));

println!("Page    : {}", data["title"].as_str().unwrap_or(""));
println!("Preview : {}\n", data["screenshot_url"].as_str().unwrap_or(""));
println!("=== AI Analysis ===");
println!("{}", data["analysis"].as_str().unwrap_or(""));

import json, time, requests

API_KEY = "YOUR_API_KEY"
PROMPT  = """Analyze this landing page and return a JSON object with these keys:
- value_proposition (string)
- primary_cta (string)
- target_audience (string)
- pricing_visible (boolean)
- social_proof_types (array of strings: "testimonials", "logos", "stats", etc.)"""

COMPETITORS = [
    {"name": "Stripe",  "url": "https://stripe.com"},
    {"name": "Paddle",  "url": "https://paddle.com"},
    {"name": "Lemonsqueezy", "url": "https://lemonsqueezy.com"},
]
report = []

for comp in COMPETITORS:
    r    = requests.get("https://api.capturekit.dev/v1/analyze",
        headers={"x-api-key": API_KEY},
        params={"url": comp["url"], "prompt": PROMPT})
    data = r.json()
    analysis_text = data.get("analysis", "{}")
    try:
        # AI may return the JSON wrapped in markdown fences
        raw = analysis_text.strip().removeprefix("```json").removesuffix("```").strip()
        analysis = json.loads(raw)
    except json.JSONDecodeError:
        analysis = {"raw": analysis_text}

    report.append({"competitor": comp["name"], "url": comp["url"], **analysis})
    print(f"✓ {comp['name']} analyzed")
    time.sleep(2)

with open("competitor_audit.json", "w") as f:
    json.dump(report, f, indent=2)
print("\nReport saved to competitor_audit.json")

import { writeFileSync } from "fs";

const API_KEY = "YOUR_API_KEY";
const PROMPT  = `Analyze this landing page and return a JSON object with these keys:
- value_proposition (string)
- primary_cta (string)
- target_audience (string)
- pricing_visible (boolean)
- social_proof_types (array of strings)`;

const competitors = [
  { name: "Stripe",       url: "https://stripe.com" },
  { name: "Paddle",       url: "https://paddle.com" },
  { name: "Lemonsqueezy", url: "https://lemonsqueezy.com" },
];
const report: any[] = [];

for (const comp of competitors) {
  const params = new URLSearchParams({ url: comp.url, prompt: PROMPT });
  const res    = await fetch(`https://api.capturekit.dev/v1/analyze?${params}`, {
    headers: { "x-api-key": API_KEY },
  });
  const data   = await res.json();
  let analysis: any;
  try {
    const raw = (data.analysis ?? "{}").replace(/^```json\n?/, "").replace(/```$/, "").trim();
    analysis  = JSON.parse(raw);
  } catch { analysis = { raw: data.analysis }; }

  report.push({ competitor: comp.name, url: comp.url, ...analysis });
  console.log(`✓ ${comp.name} analyzed`);
  await new Promise(r => setTimeout(r, 2000));
}

writeFileSync("competitor_audit.json", JSON.stringify(report, null, 2));
console.log("\nReport saved to competitor_audit.json");

<?php
$apiKey      = "YOUR_API_KEY";
$prompt      = "Analyze this landing page and return a JSON object with keys: value_proposition, primary_cta, target_audience, pricing_visible, social_proof_types.";
$competitors = [
    ["name" => "Stripe",       "url" => "https://stripe.com"],
    ["name" => "Paddle",       "url" => "https://paddle.com"],
    ["name" => "Lemonsqueezy", "url" => "https://lemonsqueezy.com"],
];
$report = [];

foreach ($competitors as $comp) {
    $params = http_build_query(["url" => $comp["url"], "prompt" => $prompt]);
    $ch = curl_init("https://api.capturekit.dev/v1/analyze?{$params}");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: {$apiKey}"]);
    $data = json_decode(curl_exec($ch), true);
    curl_close($ch);

    $raw      = preg_replace('/^```json\n?|```$/', '', trim($data["analysis"] ?? "{}"));
    $analysis = json_decode($raw, true) ?? ["raw" => $data["analysis"]];
    $report[] = array_merge(["competitor" => $comp["name"], "url" => $comp["url"]], $analysis);
    echo "✓ {$comp['name']} analyzed\n";
    sleep(2);
}

file_put_contents("competitor_audit.json", json_encode($report, JSON_PRETTY_PRINT));
echo "\nReport saved to competitor_audit.json\n";

package main

import (
    "encoding/json"
    "fmt"
    "io"
    "net/http"
    "net/url"
    "os"
    "strings"
    "time"
)

const (
    APIKey = "YOUR_API_KEY"
    Prompt = "Analyze this landing page and return a JSON object: value_proposition, primary_cta, target_audience, pricing_visible, social_proof_types."
)

type Competitor struct{ Name, URL string }

func analyze(comp Competitor) map[string]any {
    params := url.Values{"url": {comp.URL}, "prompt": {Prompt}}
    req, _ := http.NewRequest("GET", "https://api.capturekit.dev/v1/analyze?"+params.Encode(), nil)
    req.Header.Set("x-api-key", APIKey)
    resp, _ := http.DefaultClient.Do(req)
    body, _ := io.ReadAll(resp.Body)
    resp.Body.Close()

    var data map[string]any
    json.Unmarshal(body, &data)

    raw := strings.TrimSpace(fmt.Sprint(data["analysis"]))
    raw  = strings.TrimPrefix(raw, "```json")
    raw  = strings.TrimSuffix(raw, "```")
    var analysis map[string]any
    if err := json.Unmarshal([]byte(strings.TrimSpace(raw)), &analysis); err != nil {
        analysis = map[string]any{"raw": raw}
    }
    analysis["competitor"] = comp.Name
    analysis["url"]        = comp.URL
    return analysis
}

func main() {
    competitors := []Competitor{
        {"Stripe", "https://stripe.com"},
        {"Paddle", "https://paddle.com"},
        {"Lemonsqueezy", "https://lemonsqueezy.com"},
    }
    var report []map[string]any
    for _, c := range competitors {
        report = append(report, analyze(c))
        fmt.Printf("✓ %s analyzed\n", c.Name)
        time.Sleep(2 * time.Second)
    }
    b, _ := json.MarshalIndent(report, "", "  ")
    os.WriteFile("competitor_audit.json", b, 0644)
    fmt.Println("\nReport saved to competitor_audit.json")
}

import java.net.URI;
import java.net.URLEncoder;
import java.net.http.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.*;
import java.util.*;
import org.json.*;

public class Main {
    static final String API_KEY = "YOUR_API_KEY";
    static final String PROMPT  = "Analyze this landing page and return a JSON object: value_proposition, primary_cta, target_audience, pricing_visible, social_proof_types.";

    public static void main(String[] args) throws Exception {
        var client      = HttpClient.newHttpClient();
        var competitors = List.of(
            Map.of("name","Stripe",       "url","https://stripe.com"),
            Map.of("name","Paddle",       "url","https://paddle.com"),
            Map.of("name","Lemonsqueezy", "url","https://lemonsqueezy.com"));
        var report = new JSONArray();

        for (var comp : competitors) {
            var encodedUrl    = URLEncoder.encode(comp.get("url"), StandardCharsets.UTF_8);
            var encodedPrompt = URLEncoder.encode(PROMPT, StandardCharsets.UTF_8);
            var req  = HttpRequest.newBuilder()
                .uri(URI.create("https://api.capturekit.dev/v1/analyze?url=" + encodedUrl + "&prompt=" + encodedPrompt))
                .header("x-api-key", API_KEY).GET().build();
            var resp      = client.send(req, HttpResponse.BodyHandlers.ofString());
            var data      = new JSONObject(resp.body());
            var analysisText = data.getString("analysis")
                .replaceAll("^```json\\n?","").replaceAll("```$","").strip();
            JSONObject analysis;
            try { analysis = new JSONObject(analysisText); }
            catch (Exception e) { analysis = new JSONObject().put("raw", analysisText); }
            analysis.put("competitor", comp.get("name")).put("url", comp.get("url"));
            report.put(analysis);
            System.out.println("✓ " + comp.get("name") + " analyzed");
            Thread.sleep(2000);
        }
        Files.writeString(Path.of("competitor_audit.json"), report.toString(2));
        System.out.println("\nReport saved to competitor_audit.json");
    }
}

using System.Net.Http;
using System.Text.Json;
using System.Text.RegularExpressions;

const string API_KEY = "YOUR_API_KEY";
const string PROMPT  = "Analyze this landing page and return a JSON object: value_proposition, primary_cta, target_audience, pricing_visible, social_proof_types.";

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", API_KEY);

var competitors = new[] {
    (name: "Stripe",       url: "https://stripe.com"),
    (name: "Paddle",       url: "https://paddle.com"),
    (name: "Lemonsqueezy", url: "https://lemonsqueezy.com"),
};
var report = new List<object>();

foreach (var comp in competitors)
{
    var encodedUrl    = Uri.EscapeDataString(comp.url);
    var encodedPrompt = Uri.EscapeDataString(PROMPT);
    var body          = await client.GetStringAsync($"https://api.capturekit.dev/v1/analyze?url={encodedUrl}&prompt={encodedPrompt}");
    var data          = JsonDocument.Parse(body).RootElement;
    var analysisText  = data.GetProperty("analysis").GetString() ?? "{}";
    var clean         = Regex.Replace(analysisText.Trim(), @"^```json\n?|```$", "").Trim();
    object analysis;
    try   { analysis = JsonSerializer.Deserialize<Dictionary<string, object>>(clean)!; }
    catch { analysis = new { raw = analysisText }; }
    report.Add(new { competitor = comp.name, comp.url, analysis });
    Console.WriteLine($"✓ {comp.name} analyzed");
    await Task.Delay(2000);
}

File.WriteAllText("competitor_audit.json",
    JsonSerializer.Serialize(report, new JsonSerializerOptions { WriteIndented = true }));
Console.WriteLine("\nReport saved to competitor_audit.json");

use reqwest::Client;
use serde_json::{json, Value};
use std::{fs, time::Duration};
use tokio::time::sleep;

const API_KEY: &str = "YOUR_API_KEY";
const PROMPT: &str  = "Analyze this landing page and return a JSON object: value_proposition, primary_cta, target_audience, pricing_visible, social_proof_types.";

#[tokio::main]
async fn main() -> Result<(), reqwest::Error> {
    let client      = Client::new();
    let competitors = [("Stripe","https://stripe.com"), ("Paddle","https://paddle.com"), ("Lemonsqueezy","https://lemonsqueezy.com")];
    let mut report  = Vec::new();

    for (name, url) in &competitors {
        let data = client.get("https://api.capturekit.dev/v1/analyze")
            .header("x-api-key", API_KEY)
            .query(&[("url", url), ("prompt", &PROMPT)])
            .send().await?.json::<Value>().await?;

        let analysis_text = data["analysis"].as_str().unwrap_or("{}");
        let clean         = analysis_text.trim().trim_start_matches("```json").trim_end_matches("```").trim();
        let analysis: Value = serde_json::from_str(clean).unwrap_or(json!({ "raw": analysis_text }));

        report.push(json!({ "competitor": name, "url": url, "analysis": analysis }));
        println!("✓ {} analyzed", name);
        sleep(Duration::from_secs(2)).await;
    }

    fs::write("competitor_audit.json", serde_json::to_string_pretty(&report).unwrap()).unwrap();
    println!("\nReport saved to competitor_audit.json");
    Ok(())
}