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

PharmaTrader
McKesson Connect
PrimeRX
Cerner Retail Pharmacy
PioneerRX
PrimeCare
PDX Classic
GuardianRx™ puts the full range of pharmacy management tools at your fingertips with elegantly integrated Dispensing, Medication Therapy Management, Compounding, A/R and Reconciliation, and Perpetual Inventory Management (including the ability to ma…

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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|---|---|---|
| Website | zip-codes.com | carepoint.com |
| 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 GuardianRx yet.
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

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Recommended for
No analysis of GuardianRx yet.
How often each product is chosen within a category, 0–100% relative to the other.

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PharmaTrader is our next generation GST Inventory and Accounting software.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Pharmaceutical Distribution
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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