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

uberflip
CoSchedule
Embedly
Rocketium
Promo.com
VigLink
Typito
Create stories using social media. Turn what people post on social media into compelling stories. Collect the best photos, video, tweets and more to publish them as simple, beautiful stories that can be embedded anywhere.

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 | storify.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 Storify yet.
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Overall verdict
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Recommended for
When it was operational, Storify was recommended for journalists, bloggers, educators, and anyone interested in digital storytelling or content curation. However, since the service is no longer available, users will need to look for alternative tools that offer similar capabilities.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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CoSchedule is the #1 marketing calendar that helps you stay organized and get sh*t done. Plan, produce, publish and promote your content.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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