
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.
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?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | fireblocks.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Fireblocks 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.

No analysis of Fireblocks yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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).
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When comparing Fireblocks and ZIP Code API, you can also consider the following products.

Meter is a decentralized and high-performance-based infrastructure that allows for the development of blockchain applications.
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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 superior consensus algorithm.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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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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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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