Postcodes4u - UK Address Finder for Zen Cart


Install this plugin for UK address validation on Zen Cart registration page, checkout pages and Admin/customers page from 3x Software & Royal Mail.

Sign up for a trial account that includes 30 free credits at

Enter the username and the product key generated from the site into the /postcodes4u.php file and have address validated data for your customers orders.

After the trial period (30 credits) has expired, it's easy to purchase more credits from a range of competitively priced bundles to ensure your dispatches are going to a UK address that has been PAF validated.

See this plugin in action on our demo Zen cart site, just select United Kingdom from the country drop-down

(Tested in v1.5.7)