
Proxyclick
SwipedOn
The Receptionist
TractionGuest
Teem
WhosOnLocation
VisitorTrack
Visitor registration that's changing how guests are greeted in companies around the world.
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, Envoy seems to be more popular. It has been mentioned 8 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 | envoy.com | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Envoy 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...
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Here's a 2008 GMC Envoy SLT - 10 Year Later Review | For Sale Today $10,880
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Envoy and ZIP Code API. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

Envoy is a high-performance distributed proxy written in C++. It can be used as an L4 or L7 load balancer, and is designed for building large distributed service meshes and microservices. It simplifies building...
For free mailroom management software you can fully trust, go to Envoy today. Envoy also has package notifications, automatic reminder software, and mailroom data analytics software.
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Recommendations tracked on public social media and blogs since March 2021.

Envoy (https://envoy.com) | Software Eng (Product, Backend) | San Francisco, CA (ONSITE) I'm hiring engineers for a Special Projects team to rapidly iterate and ship experimental products with the goal to define what the future of... - Source: Hacker News / almost 2 years ago
We have been working closely with users of Cerbos such as Envoy, Blockchain.com, Utility Warehouse, 9fin, and Salesroom on this release. We can’t wait to hear more about what you would like to see in future releases - join our Slack... - Source: dev.to / almost 3 years ago
Envoy sells products for managing hybrid workspaces: https://envoy.com/ So hardly an unbiased source. - Source: Hacker News / about 3 years ago
Tracking ZIP Code API since May 2026.
When comparing Envoy and ZIP Code API, 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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SwipedOn is a smart but simple visitor management solution. Our paperless gateway makes connecting people intuitive and easy.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The Receptionost is a visitor managemnt solution that has visitor logging system to track visitor traffic.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to Envoy or ZIP Code API: