Stop fraud before it
touches your revenue.

# STEP 1 — Get your key at kairoscheck.net/pricing
# STEP 2 — One dependency: requests (already in your venv)
# STEP 3 — One function at signup:

import requests

KC_API_KEY = "kc_live_your_key_here"

def check_fraud(domain: str) -> dict:
    resp = requests.post(
        "https://kairoscheck.net/api/check",
        headers={
            "Authorization": f"Bearer {KC_API_KEY}",
            "Content-Type":  "application/json",
        },
        json={"domain": domain},
        timeout=10,
    )
    resp.raise_for_status()
    data = resp.json()

    # STEP 4 — Handle the verdict:
    if data["verdict"] == "BLOCK":
        raise ValueError("Signup denied")
    if data["verdict"] == "REVIEW":
        flag_for_review(domain, data["score"])
    return data  # CLEAR — allow through

# STEP 1 — Get your key at kairoscheck.net/pricing
# STEP 2 — No install. cURL ships with every OS.
# STEP 3 — Test in 10 seconds:

curl -X POST https://kairoscheck.net/api/check   -H "Authorization: Bearer kc_live_your_key"   -H "Content-Type: application/json"   -d '{"domain":"suspicious-shop.io"}'

# STEP 4 — Response:
{
  "verdict":  "BLOCK",
  "score":    94,
  "signals":  { "newDomain": true, "disposable": true },
  "ms":       89
}

# No key? Try the public demo (10 free/hour):
# curl -X POST https://kairoscheck.net/api/check-public #   -H "Content-Type: application/json" #   -d '{"domain":"test.io"}'

// STEP 1 — Get your key at kairoscheck.net/pricing
// STEP 2 — Uses PHP curl — enabled by default, zero Composer deps
// STEP 3 — One function at registration:

define('KC_API_KEY', 'kc_live_your_key_here');

function checkFraud(string $domain): array {
    $ch = curl_init('https://kairoscheck.net/api/check');
    curl_setopt_array($ch, [
        CURLOPT_POST           => true,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT        => 10,
        CURLOPT_HTTPHEADER     => [
            'Authorization: Bearer ' . KC_API_KEY,
            'Content-Type: application/json',
        ],
        CURLOPT_POSTFIELDS => json_encode(['domain' => $domain]),
    ]);
    $data = json_decode(curl_exec($ch), true);
    curl_close($ch);

    // STEP 4 — Handle verdict:
    if ($data['verdict'] === 'BLOCK')
        throw new RuntimeException('Signup denied');
    return $data;
}

// Works with Laravel, Symfony, WooCommerce, Magento — any PHP stack.