Most accurate & fastest address verification

Smarty is simply the best solution for USPS and International Address Validation. From our APIs, to our list-processing tools, we have an address validation solution for you.

Address entered transformed to validated address

Address validation tools

US property data

Get marketing insights, analyze risk, and unlock ROI with 350 property attributes on most US addresses.

Home with data points

Property attributes include:

  • 150 structure property attributes
  • 60 location property attributes
  • 130 financial property attributes

Smarty's US Property Data is available through our US Address Enrichment API. It's cloud-native, lightning-fast, hyper-accurate (with monthly updates), and backed by Smarty's legendary support team.

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US rooftop geocoding

Geocoding transforms addresses into lat/long coordinates. We provide hyper-accurate geocoding at blazing speeds. All for a fixed price.

Get More DetailsHyper-accurate US Rooftop Geocoding
Proud to be #1
LeaderBest resultsMost implementableBest relationshipBest usabilityMomentum leaderEasiest to useHighest user adoptionAmericas leader

Fast, easy, and reliable

Our simple API documentation and fantastic customer support make it easy to start validating addresses in just a few minutes.

Get rolling in minutes

No credit card required. Get 1,000 free lookups. Try out the full demo before signing up.

100% up-time

Our service averages (drumroll please)…100% up-time!

Every address on the planet

From Tokyo to Toronto and everywhere in between. Verify addresses with our USPS and International address validation APIs.

Customer-loving support

Talk with real people who love helping you.

Ridiculously good documentation

Comprehensive and easy-to-digest documentation. From our address validation APIs to our List Processing Tools, every detail you need is right here.

Guaranteed data security

24 hour monitoring, encryption, and hashed. And we swallowed the key.

Transparent pricing

Simple pricing. No setup fees, commitments, or gimmicks.

Really fast

There's fast and then there's Smarty fast. Our service averages sub-30 millisecond response time.
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