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

Dead Simple Screen Sharing
CleanSpark
Krisp
Rectangle
Magnet Window Manager
Bear
Zoom
Silence embarrassing notifications while screensharing

Which is more popular?
Based on our record, Muzzle seems to be more popular. It has been mentioned 9 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 | muzzleapp.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 Muzzle 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 Muzzle yet.
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Muzzles - What's the DIFFERENCE?!
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and Muzzle. 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.
> Muzzle, which automatically silences desktop notifs when you're screensharing https://muzzleapp.com/ Wow, the fake notifications on the landing page are really something lol. - Source: Hacker News / almost 3 years ago
Two more little utilities that I cannot live without on Mac: A tiling window manager like https://rectangleapp.com/ Muzzle, which automatically silences desktop notifs when you're screensharing https://muzzleapp.com/. - Source: Hacker News / almost 3 years ago
Https://muzzleapp.com/ : mute notification when on videocall. Source: over 3 years ago
When comparing ZIP Code API and Muzzle, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Simple screen sharing and audio conferencing software.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Declutter your screen to share it on your next presentation
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Eliminate background noise, minimize distractions, feel more confident, and activate your communication superpower with Krisp, an AI-powered software solution for effective online meetings.
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