A plugin that contacts USPS API and verifies, fixes address mistakes such as typos etc.
Woocommerce USPS Address Verification API Download Now
(If the link does not work)↓
Originals Link WordPress.org
How to Install Woocommerce USPS Address Verification API Plugin, Manually
Click install plugin on this page, or if you wish to do it manually, upload folder woocommerce-usps-verification into your wp-content/plugins folder
and on plugins page in your admin area, click activate.
Plugin Not Working?
If any errors or problems with the plug-in then write comments.