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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.

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


No description of phpBolt yet.
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,...
What each product offers, as listed by its team.


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Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using phpBolt and PostalDataPI. For example, how are they different and which one is better?
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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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