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

Zapier
Simple Poll
Obie.ai
Zoom.ai
Trello Bot
Polly
Conversica
Vauxhall Troops offers loyalty discounts if the car is purchased from us and we include this in your reminder. All used cars come with 12 Months MOT as Standard, Vauxhall Troops quote a competitive fixed price for any work required.

Which is more popular?
Based on our record, Troops seems to be more popular. It has been mentioned 1 time since March 2021.
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 | troops.ai |
| Pricing | — | |
| 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 Troops 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.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Troops.ai is recommended for sales teams, customer service teams, and any organization using Salesforce that wants to improve communication efficiency and data accessibility through Slack or Microsoft Teams. It's particularly useful for teams wanting to automate routine tasks and focus more on strategic activities.
Walkthroughs and reviews on video.
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Watch President Obama Review the Troops
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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 Troops. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Take a look at http://troops.ai/ - they are building more product. Source: about 5 years ago
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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