USPS Address Verification

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The USPS Address Verification extension verifies billing and shipping addresses during the checkout process.
Compatible with:
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USPS Address Verification

Compatible with Magento versions:
Community: 1.5 - 1.9, Enterprise: 1.9 - 1.14
Not compatible with One Step Checkout extensions

Magento Connect Enterprise Developer


  • Reduce Shipping Costs to Invalid Addresses
  • Automatically Validates Addresses
  • Simplified Admin with Easy Install
  • Works with the Free USPS API
  • No monthly fees!


The USPS Address Verification extension verifies visitor billing and shipping addresses seamlessly in the background during the checkout process.

This extension works by calling the USPS Web Tools Address Information API, and passes in the visitor's street address input. The API then passes back the corrected/verified street address information, with (if applicable) corrected street address, city, state, and zip code (with +4 code). This information is dynamically updated in the background, so the user does not even have to select/choose which address to use -- it always uses the standardized address. It will also process pre-saved addresses during customer checkout. This module is non-evasive, and does not change any template or layout files in Magento.


  • Allow customers to bypass address verification after USPS returns an "Incorrect Address" response.
  • My Account Address Book entries are also verified by USPS at creation time and at checkout.
  • Admin option to let customers bypass verification or not.
  • Addresses are verified for orders manually created from admin.
  • Addresses are verified when customers create address book entries.



Release Notes

There are no uploaded releases.


About the Developer

This extension was developed by and is supported by markoshust

USPS Address Verification 5 5 6 6
Great Module/Great Developer Support My client prints a ton of labels a day and this module has saved them hours of time dealing with bad address input which in turn resulted in label printing errors. The couple questions I had were answered by the developer in prompt and concise manner and a small odd ball bug that we discovered was fixed quickly. Can't say enough good things about this developer. The best I've come across in the Magento world. You should run to buy his modules. September 26, 2014
Works Great! This extension was easy to install and works great. The options are simple and works as advertised. If you're looking to add this feature to your storefront - this is the extension to use. Any questions we had were answered very quickly too. June 26, 2014
Saved us A LOT $$ and Overhead I just love it. We were looking for different solution to avoid addresses mistakes and this works perfect. We saved a lot of $$ with it chasing customers and now less overhead. I would recommend it to anyone. Great support from Mark!! Thank you so much!!! June 16, 2014
Very Useful Extension We initially had a bit of trouble with the extension installation, but Mark was there right away and had the extension working correctly in no time. Once working correctly, the extension saved our client hours of work every week double checking addresses so that their carrier would accept their labels. I would definitely recommend the product. April 22, 2013
I've had this for several months now and the extension works great! The developer, Mark, was very responsive and helpful, and even added a new feature to allow the user to bypass verification if they're sure their address is correct. You'll definitely get top notch support with this extension. July 24, 2012
Very nice implementation! I especially like the way the customer is notified as to exactly which address line needs correction during the checkout process. I will most likely be buying this module soon. July 1, 2012
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Is there an option of this extension to set PO Box as invalid address?
Also, can we customize the design, for examle, the buttons?
Just to make sure, this extension works for both store front checkout and admin order entry, is that right?

1 year, 9 months ago
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How can I intergrate the extension into OneStepCheckOut?
1 year, 9 months ago
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We have a customer that might need to automatically get the US county name with the verified address. Is it possible to have county name added to a customer text attribute (in EE)?

1 year, 5 months ago
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I want the module to validate address on multi shipping,
Please It will be a great help from you, if you can explain what can be done to solve multi-shipping address validation issue or give me a patch.

Piyush Sahu.
Magento Developer.
5 months, 2 weeks ago
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