
ZIP Code API
ZipCheckup
PostalCodes.info
Smarty
Geocode.xyz
Geoco.io
getAddress.io
Free Zip Code API - Free Postal Code Validation | Zipcodestack

Meter
Hedera Hashgraph
Avalanche
Algorand
Acala
Karura
Elrond
Fireblocks is an all-in-one digital asset custody, settlement, and transfer platform that is intended for institutions, providing secure transfer and storing of digital assets.

Which is more popular?
Based on our record, Zipcodestack seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | zipcodestack.com | fireblocks.com |
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What each product offers, as listed by its team.


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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 Fireblocks yet.
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Fireblocks: Biggest Challenge for Institutions Is Not Knowing Which Questions to Ask
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Fireblocks has enabled 2,400+ enterprises, processed $10 trillion in transactions, and secured over 550 million wallets (Fireblocks, 2025).
Recommendations tracked on public social media and blogs since March 2021.


Using the zipcodestack API in your Node.js application is straightforward. You’ll first need to sign up for a free API key (it only takes a minute). Once you have your API key, you can call the REST endpoints using any HTTP client. Below... - Source: dev.to / about 1 year ago
Zipcodestack - Free Zip Code API and Postal Code Validation. Ten thousand free requests/month. - Source: dev.to / over 2 years ago
I have seen this request pop up quite a few times. I did a quick search for free APIs of zipcode lookups. This one, named "zipcodestack" (I'm not in any way tied to, endorsing, or promoting them) seemed like a pretty good resource with... Source: over 3 years ago
Tracking Fireblocks since Feb 2022.
When comparing Zipcodestack and Fireblocks, you can also consider the following products.
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
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Meter is a decentralized and high-performance-based infrastructure that allows for the development of blockchain applications.
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Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.
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A superior consensus algorithm.
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Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.
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Avalanche was founded at MIT with the mission to create a high scalability blockchain platform that has been used by developers around the globe to create new applications that are based and run by cryptocurrency.
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