New 42-day free trial Get it now
Smarty

Setting up US Address Autocomplete API to autofill your forms

Smarty header pin graphic
Updated October 29, 2025
Tags
Smarty header pin graphic

Many businesses now collect data online. One could argue that it is nearly impossible to succeed in modern business without some sort of online portal in which there is an exchange of information between the provider and the customer.

But how do you ensure that the information being input by the customer (or potential customer) is accurate?

While there is no way to ensure that Bobby Duncan doesn’t put “Sammy Sosa” in the name line on a form, there IS a way to ensure that he’s putting in a valid mailing address for you to mail his package to.

There are more benefits than just ensuring the address data is complete and accurate. The more keystrokes a user needs to make to complete a form, the less likely they are to complete it, driving down conversion rates. Most companies these days try to ask for less than four items per form because they know that if they ask for name, email, and company they’ll have less form fills.

So why not remove some of the manual labor from your users and have their address—likely the longest thing they’ll type into your form—complete itself after as few as four keystrokes? That’s possible, using the Smarty US Address Autocomplete API.

In a recent webinar, our own Dave Hale, Front-End Engineer for Smarty and coding lover, showed how you can use the Smarty US Address Autocomplete API to autofill the address line in your forms.

There are several benefits to utilizing an autocomplete API for the address line in your forms:

  • Keep your database clean and accurate from the beginning
  • Ensure you are only collecting mailable addresses
  • Prevent accidental fat-fingered addresses
  • Prevent intentionally fake addresses and fraud
  • Remove the need to do regular database cleansing
  • Increase form conversion rates

In the webinar recording below, you’ll watch Dave utilize two different methods to implement the Smarty US Address Autocomplete API into a form:

  • JavaScript SDK (Full documentation found here: https://www.smarty.com/docs/sdk/javascript)
  • US Autocomplete Pro API: (Full documentation found here: https://www.smarty.com/docs/cloud/us-autocomplete-pro-api)

Start increasing your form fills and reducing bad address data.

Try the Smarty US Address Autocomplete API yourself for free by signing up for a free account where you’ll get 1,000 free US Address Autocomplete lookups, along with a slew of other useful testing items.

Get Free Account

Subscribe to our blog!
Learn more about RSS feeds here.
Read our recent posts
Pinpoint 2025: Day 1 recap
Arrow Icon
For two days, Smarty users gathered together with other address data experts for Pinpoint, Smarty’s first virtual user conference, where developers, industry experts, and product specialists talked all things addresses and pulled back the curtain on address data solutions. Attendees asked questions about cloud-based software, the impact of accurate address data on fintech and insurance companies, and the ROI of good address data across all industries. Plus, attendees got to take a peek behind the scenes and see what makes Smarty’s address data solutions tick.
Pinpoint 2025: Day 2 recap
Arrow Icon
For two days, Smarty gathered address data experts for Pinpoint, our first-ever virtual user conference. There, developers, product specialists, and industry experts delved into the nitty-gritty details of address data that you need to understand in order to succeed in your industry. Attendees learned how to process addresses faster (much faster) than the blink of an eye, with and without using code! They also got to look under the hood on how insurance is evolving and becoming even more efficient than ever to create a “delightful user experience.
What to look for in an address data solution: Ease of implementation
Arrow Icon
You’ve maybe chosen an address data provider (or maybe you’ve just recently fallen out of love with the one you’ve got). Now comes the time to really test what matters: implementation. Even the best solution falls short if it’s hard to integrate, confusing to use, or impossible to maintain. This blog is part of our five-part series, What to look for in an address data solution. Previously, we discussed why human support teams should be top of mind when choosing an address data solution. Not just tech support, but educational materials, help getting started, and more.

Ready to get started?