
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.

Register to Vote
Vote.org
Say Yay
HelloVote
Votedash
Register to vote and receive free Bitcoin or Ethereum π°

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | postaldatapi.com | btc18.org |
| Pricing | β | |
| Company | Startup from the United States Β· 1 - 9 employees Β· 2026 | β |
| 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 β $0.000028 per query with no tiers or subscriptions. What you get back: Up to 18 metadata fields per postal code β city, state/region, coordinates,...
No description of BTC18 yet.
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
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 BTC18 yet.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code β for 240+ Countries
More videos
No BTC18 videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0β100% relative to the other.


Share your experience with using PostalDataPI and BTC18. For example, how are they different and which one is better?
When comparing PostalDataPI and BTC18, 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.
Compare Postio.co.uk to PostalDataPI or BTC18:

Register to vote in 30 seconds by scanning your ID πΊπΈ
Compare Register to Vote to PostalDataPI or BTC18:

We help businesses improve UX and data quality with a cutting edge address validation service.
Compare Ideal postcodes to PostalDataPI or BTC18:


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.
Compare Fetchify to PostalDataPI or BTC18: