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
Hey Siri
Google Home
Google Assistant
Hound
Whyd
Google Trends
BotTalk
Explore over 150 Google Now voice commands in one place

Which is more popular?
Based on our record, OK Google 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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OKG
OK Google
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|---|---|---|
| Website | zip-codes.com | ok-google.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 OK Google 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
No analysis of OK Google yet.
Walkthroughs and reviews on video.
No ZIP Code API videos yet. You could help us improve this page by suggesting one.
OK Google!!! #MakeGoogleDoIt
How often each product is chosen within a category, 0–100% relative to the other.
Share your experience with using ZIP Code API and OK Google. 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.
Https://ok-google.io - list of commands that you can ask Google's voice assistant. Source: over 4 years ago
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