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

Ideal postcodes
Loqate
Primo Postcodes
Data8 UK
getAddress.io
Smarty
Postio.co.uk
Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.

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 | zip-codes.com | fetchify.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 2026 | Startup from the United Kingdom · 10 - 19 employees · 2008 |
| 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...
Fetchify is a leading SaaS provider of data validation and cleansing tools designed to help businesses capture, verify and maintain accurate customer information across every digital touchpoint. Our powerful cloud-based APIs and plugins make it simple to integrate real-time address lookup, email,...
What each product offers, as listed by its team.

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 Fetchify yet.
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing ZIP Code API and Fetchify.
Fetchify's answer:
Fetchify combines powerful, developer-friendly APIs with trusted, high-quality address and data sources such as Royal Mail PAF®, Multiple Residence, and Not Yet Built datasets to deliver unmatched accuracy. Unlike many validation tools, Fetchify provides granular rooftop-level geocoding, flexible integrations, and transparent pricing — all through a single, reliable SaaS platform that scales effortlessly across ecommerce, CRM, and enterprise systems.
Fetchify's answer:
Fetchify offers a balance of accuracy, speed, and simplicity rarely matched in the data validation market. Our technology focuses on preventing bad data at entry rather than correcting it later, helping businesses cut failed deliveries, boost checkout conversion, and improve customer experience. With global coverage, robust uptime, UK-based support, and flexible APIs that fit effortlessly into existing workflows, and a knowledgable, accessible support team, Fetchify is the trusted alternative to providers like Loqate, Melissa, and Smarty.
Fetchify's answer:
Fetchify is designed for businesses and developers who rely on accurate customer data — from ecommerce and retail to logistics, finance, and marketing but the Fetchify product range is built for any SaaS platform to be lightweight, easy to implement and cost effective to use. Typical users include SaaS developers, data managers, digital marketers, and IT teams looking to integrate address lookup, email, phone, and bank validation directly into forms, CRMs, or websites to improve data quality and reduce operational friction.
Fetchify's answer:
Originally founded as Crafty Clicks in 2008, the business was acquired by software investment group ClearCourse in 2019. Since then, rebranding as Fetchify and investing in our people as well as our products, we have evolved from a simple UK postcode lookup service into a comprehensive SaaS data validation platform serving thousands of global businesses. Over the years, we’ve expanded our product range, added international datasets, and continue our mission to make customer data cleaner, faster, and smarter for every business.
Fetchify's answer:
Fetchify is built on a modern, scalable cloud infrastructure using AWS and proprietary algorithms for high-speed query performance, and robust RESTful APIs for integration. Our services leverage multiple data sources including Royal Mail PAF®, Ordnance Survey, USPS, and other global address providers. Continuous monitoring, automated scaling, and distributed clusters ensure reliability, speed, and resilience across all Fetchify validation products.
Fetchify's answer:
-Royal Bank of Scotland -SharkNinja -Security Watchdog -Gousto -The Access Group -Mattel -GTech -LG -The Kennel Club -Movember -Enterprise Rent-A-Car -Moonpig Group
Share your experience with using ZIP Code API and Fetchify. For example, how are they different and which one is better?
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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UK Postcode Address Lookup API - Maximise E-Commerce Checkouts, Increase Conversions, Reduce Data Entry & Improve Accuracy.
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