
ZIP Code API
ZipCheckup
PostalCodes.info
Smarty
Geocode.xyz
Geoco.io
getAddress.io
Free Zip Code API - Free Postal Code Validation | Zipcodestack

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?
Based on our record, Zipcodestack seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | zipcodestack.com | cargoenter.com |
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| Listed in |
What each product offers, as listed by its team.


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


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


Share your experience with using Zipcodestack and CargoEnter. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Using the zipcodestack API in your Node.js application is straightforward. You’ll first need to sign up for a free API key (it only takes a minute). Once you have your API key, you can call the REST endpoints using any HTTP client. Below... - Source: dev.to / about 1 year ago
Zipcodestack - Free Zip Code API and Postal Code Validation. Ten thousand free requests/month. - Source: dev.to / over 2 years ago
I have seen this request pop up quite a few times. I did a quick search for free APIs of zipcode lookups. This one, named "zipcodestack" (I'm not in any way tied to, endorsing, or promoting them) seemed like a pretty good resource with... Source: over 3 years ago
Tracking CargoEnter since Apr 2026.
When comparing Zipcodestack and CargoEnter, you can also consider the following products.
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
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Collaborative platform for freight transportation management
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Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.
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The world’s most easy-to-use, intuitive multimodal logistics platform
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Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.
Compare PostalCodes.info to Zipcodestack or CargoEnter:

TimeToCargo is a container tracking service that consolidates shipment data from 100+ shipping lines into clear, standardized reports.
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