UK Payment Gateway
for Small Business.
Save 36% vs Stripe

import urllib.request, urllib.parse, json

GATEWAY = "https://elite.monek.com/Secure/Transact.ashx"

payload = {
    "MerchantID":       "YOUR_MERCHANT_ID",
    "ApiKey":           "YOUR_API_KEY",
    "MessageType":      "ESALE_KEYED",
    "Amount":           "1000",
    "CurrencyCode":     "826",
    "CountryCode":      "826",
    "Dispatch":         "NOW",
    "ResponseAction":   "JSON",
    "CardNumber":       "4012001037141112",
    "ExpiryMonth":      "12",
    "ExpiryYear":       "26",
    "CV2":              "123",
    "CardholderName":   "Test Cardholder",
    "QAAddress":        "123 Test Street",
    "QAPostcode":       "TE1 1ST",
    "PaymentReference": "ORDER-001",
}

data = urllib.parse.urlencode(payload).encode("utf-8")
req  = urllib.request.Request(GATEWAY, data=data, method="POST")

with urllib.request.urlopen(req, timeout=30) as resp:
    result = json.loads(resp.read().decode("utf-8"))

print(result["result"]["responseMessage"])  # AUTHORISED