
Postio.co.uk
Ideal postcodes
Fetchify
Smarty
Data8 UK
ZIP Code API
Data8 UK PredictiveAddress
The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

Sitecake
TYPO3
Anchor CMS
Textpattern
Flextype
ApostropheCMS
Microweber
The WordPress fork. No Gutenberg. Great future!

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | postaldatapi.com | classicpress.net |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions. What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates,...
No description of ClassicPress yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
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 ClassicPress yet.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
More videos
Wordpress 5 Gutenberg Free Alternative | ClassicPress 👍🤔
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PostalDataPI and ClassicPress. For example, how are they different and which one is better?
When comparing PostalDataPI and ClassicPress, you can also consider the following products.

Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.
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Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
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We help businesses improve UX and data quality with a cutting edge address validation service.
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TYPO3.com - Infos, SLAs, Extended Support Versions and more
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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.
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