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

CargoPlanning
GoComet
TimeToCargo
Track shipments in real-time across 20+ carriers worldwide. Create IATA-compliant AWB documents, collaborate with teams, and get powerful analytics.

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 | cargoenter.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 CargoEnter yet.
What each product offers, as listed by its team.

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

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Why this product is good
Recommended for
Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and CargoEnter. For example, how are they different and which one is better?
When comparing ZIP Code API and CargoEnter, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Collaborative platform for freight transportation management
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The world’s most easy-to-use, intuitive multimodal logistics platform
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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TimeToCargo is a container tracking service that consolidates shipment data from 100+ shipping lines into clear, standardized reports.
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