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Public APIs · by APILayerData from public-apis (MIT)
  1. Home
  2. /Geocoding
  3. /US ZipCode
Geocoding
US ZipCode logo

US ZipCode

Validate and append data for any US ZipCode.

US ZipCode API is a free Geocoding API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.

Authentication
apiKey
HTTPS
Yes
CORS
Yes
Category
Geocoding
Visit documentation ↗www.smarty.com

About Smarty

Instructions on how to easily look up, verify and append ZIP Code data using the US ZIP Code API from Smarty.

Provider
Smarty
Website
smarty.com ↗

Details from smarty.com.

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US ZipCode API FAQ

Who provides the US ZipCode API?

The US ZipCode API is provided by Smarty (smarty.com). Instructions on how to easily look up, verify and append ZIP Code data using the US ZIP Code API from Smarty.

Is the US ZipCode API free?

Yes. The US ZipCode API is listed in the Geocoding category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.

Does the US ZipCode API require an API key?

Yes. The US ZipCode API uses apiKey authentication, so you need to register for credentials before making requests.

Can I call the US ZipCode API from the browser?

Yes. The US ZipCode API supports CORS, so front-end JavaScript can call it directly.

Does the US ZipCode API support HTTPS?

Yes. The US ZipCode API is served over HTTPS, so it's safe to use in production.