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

Dialog Messenger
Ripcord
Done Hui
Ziggs
Swee.lol
LeggoChat
Zangi Business Solutions
The complete white-label framework for in-app team messaging and collaboration.
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 | weavy.com |
| Pricing | — | |
| Platforms | — | |
| 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...
Add contextual activity feeds, chat, and secure file sharing directly into your apps to increase user engagement, improve in-app retention, and reduce customer churn. All Weavy features include integrations to the third party tools your users are already familiar with: add capabilities for Zoom...
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Weavy is a comprehensive toolset that allows developers to quickly customize and add community, productivity, and collaboration capabilities to online and mobile products using a white-label SDK and API. For its easy...
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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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No need to switch between multiple pieces of software to get through the workday. CHATS: Communicate freely. CALENDAR: Know your team's availability, plan meetings. No more conflicts. TO-DOs: Stay on top of all projects. FILES: All files, one spot.
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