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

Hedera Hashgraph
Avalanche
Algorand
Acala
Karura
Elrond
Binance Smart Chain (BSC)
Meter is a decentralized and high-performance-based infrastructure that allows for the development of blockchain applications.

Which is more popular?
Based on our record, Meter seems to be more popular. It has been mentioned 1 time 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 | meter.io |
| 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...
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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.

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Review & How To Use Watt / Power Meter to Monitor Electricity use by MECHEER
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Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
A. MTR from Meter. io. Flatcoin. Coin pegged to the cost of 10 kWh of electricity. Flatcoin - neither inflationary, nor deflationary. Source: almost 3 years ago
When comparing ZIP Code API and Meter, 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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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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Algorand is a blockchain technology for FutureFi, which has proven stability and performance.
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