
Hacker News
Tildes
Reddit
Lemmy
Raddle
Hacker News Search
Server Fault
Lobsters is a technology-focused link-aggregation site.
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, Lobsters seems to be more popular. It has been mentioned 160 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 | lobste.rs | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Lobsters yet.
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...
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Lobsters is a technology-focused link aggregation site with a strong community emphasis.
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Recommendations tracked on public social media and blogs since March 2021.

From what I can tell: * 7/8 of your submissions were for your own website or projects (https://lobste.rs/~andros/stories + this deleted one). - Source: Hacker News / about 5 hours ago
I find Hacker News a little difficult to read on mobile. Most other frontends compromise too much on information density and the minimal feel of the site. So, I made a design heavily inspired by Lobste.rs, which felt... - Source: Hacker News / 2 days ago
Top post there right now is by user maurycy (https://lobste.rs/~maurycy) Also a HN user (https://news.ycombinator.com/user?id=maurycy) Same shit. - Source: Hacker News / about 2 months ago
Tracking ZIP Code API since May 2026.
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Hacker News is a social news website focusing on computer science and entrepreneurship. It is run by Paul Graham's investment fund and startup incubator, Y Combinator.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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A non-profit community site driven by its users' interests
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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