Use a proxy with Selenium

Get your details

Copy the host, port, username and password for your proxy from the dashboard. Where this page writes <host>, <port>, <username> or <password>, paste your own values.

Start Chrome with the flag

Chrome ignores credentials inside --proxy-server. Authenticated proxies are easiest to use with an IP allowlist, which needs no credentials in the browser.

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument("--proxy-server=http://<host>:<port>")

driver = webdriver.Chrome(options=options)
driver.get("https://api.ipify.org")
print(driver.find_element("tag name", "body").text)
driver.quit()

Using username and password

If you must authenticate with credentials, use a library such as selenium-wire, or drive the browser with Playwright instead, which has native credential fields.