Free Address Verification/Standardization
USPS webtools is expensive, and Google Maps doesn't have certain addresses. Are there any free or open-source solutions?
Depending upon the nature of your business, or if you're a non-profit or educational institution, there is one online provider that gives you free address verification: SmartyStreets. Up to this point, I've never seen another online provider offer their services for free.
UPDATE: SmartyStreets now has a free offering for any company of any kind, up to a certain amount of lookups per month.
In the interest of full disclosure, I'm the founder of SmartyStreets. You're more than welcome to contact me personally with additional questions.
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