Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
Lantern
MediaHint
Mirro
Passwork
GoodAccess
UnCrack
Google AI Edge Gallery
AC Demo is an Android App of a simulator to demonstrate how the capability based access control works.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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ACD
AC Demo
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|---|---|---|
| Website | zip-codes.com | yechengchu.github.io |
| Company | Startup from the United States · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
No description of AC Demo yet.
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Share your experience with using ZIP Code API and AC Demo. For example, how are they different and which one is better?
When comparing ZIP Code API and AC Demo, you can also consider the following products.

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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Unblocks geo-restricted and censored content on all devices; Chrome, Firefox, Ipad, Android, Apple...
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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An all-in-one team performance management solution made easy
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