(Vanilla) Python

#!/usr/bin/env python3
import requests
import urllib

username = '{PROXY_USERNAME}'
password = '{API_KEY}'
url      = 'https://cloudflare.com/cdn-cgi/trace' # Insert your target URL here
host     = 'network.joinmassive.com'
port     = 65535
proxy    = f'https://{username}:{password}@{host}:{port}'
response = requests.get(url, proxies={'http': proxy, 'https': proxy})

print(response.content)