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

Which is more popular?
Based on our record, Telegram seems to be more popular. It has been mentioned 139 times 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 | telegram.org |
| Pricing | — | |
| Company | Startup from the United States · 2026 | Startup from the United Arab Emirates · 10 - 19 employees · 2013 |
| 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 Telegram yet.
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Overall verdict
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WhatsApp vs Telegram vs Signal: Which is the BEST?!
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If you're looking for a Telegram alternative that actually does a lot of the same things, Facebook Groups is an option. Like Telegram, Facebook lets you cultivate large groups of people ("members") and curate content...
Telegram features all of the main communication features of Facebook’s DM service, such as text chats, voice calls, fun stickers (you can make Telegram stickers), and media attachments. It also supports group calls...
Apart from that, Telegram is fast, reliable, and packs features like large group chats, broadcasts, file and media sharing with incomparable size limitations and more. It also features cloud syncing so that you don’t...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Anyway, copying and reproducing is a great way to learn. It also train the mind to decompose every applications in small pieces. The same could have been done for Briar, SimpleX or Telegram applications, all of them are open-source and... - Source: dev.to / 5 months ago
In fact, as of today, Anthropic officially shipped this as Claude Code Channels — a plugin-based feature that lets you push messages from Telegram or Discord into a running Claude Code session on your machine. Your session processes the... - Source: dev.to / 8 months ago
Nowadays, messaging apps are ubiquitous. It’s quite possible that at least one message from such a service just buzzed in your pocket a moment ago. So why not to send a message to a chat group where your friends or customers can act on... - Source: dev.to / over 1 year ago
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Fast, simple & secure messaging. Privacy that fits in your pocket.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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A messaging app for teams who see through the Earth!
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