
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.

Porter
CardCorp
Stripe
CTO.ai
Wirize
Rampex.io
Adyen
Plural is a full-stack online payments entity that provides three solutions to any merchant running an online business - Plural Console (payments orchestration platform), Plural Gateway (flagship payment gateway), and Plural Checkout (mobile SDK).
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | postaldatapi.com | pluralonline.com |
| 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 Plural yet.
What each product offers, as listed by its team.


Possible disadvantages
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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 Plural yet.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
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Singular and Plural Nouns - s, es, and ies endings
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How often each product is chosen within a category, 0–100% relative to the other.


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When comparing PostalDataPI and Plural, 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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We help businesses improve UX and data quality with a cutting edge address validation service.
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Connect your merchant checkout to global card networks securely with CardCorp's payment gateway, and access major payment methods.
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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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Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
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