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Speed up checkouts. Slash delivery failures.
Fewer errors, faster checkouts. Postcoder helps online retailers capture accurate customer data at the moment it matters most - checkout.
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Cart abandonment costs retailers billions every year
Long, error-prone checkout forms are one of the leading causes of abandoned baskets. When customers type their full address manually, mistakes creep in: wrong postcodes, misspelled streets, transposed numbers. The result? Failed deliveries and frustrated customers who won't come back.
Address errors also contaminate your CRM, inflate your return rates and undermine the personalisation that drives repeat purchases. Getting the data right at the point of entry is far cheaper than fixing it downstream.
1 in 5shoppers have abandoned a checkout because the process was too long or complicated.Baymard Institute
How does Postcoder turn browsers into buyers?
What is Postcoder?
Postcoder is a multi-feature API you can integrate into your website or app quickly and easily using pre-built integrations, sample code and API reference, all within clear and well-structured docs. You can be up and running in minutes with a free trial, and Postcoder's support specialists are always on hand if you need help.
The ultimate toolkit for retail and ecommÂerce
Postcoder brings together everything you need to build forms that customers can fill in quickly and accurately.
Address lookup
Postcode lookup, Eircode lookup and address autocomplete for 249 countries worldwide. Find any address in seconds from a partial postcode or street name.
Email validation
Verify email addresses in real time to reduce bounce rates, block disposable addresses and protect your marketing lists.
Mobile validation
Confirm that mobile numbers are real, correctly formatted and connected to a live network before you send an SMS.
Bank validation
Real-time sort code and account number verification, including branch details, BIC codes, and direct debit eligibility.
Rooftop geocoding
Latitude and longitude coordinates at rooftop precision. Essential for accurate delivery, store finders and location-based services.
OTP verification
Add a layer of account security at registration or checkout with one-time password SMS verification.
What our retail customers say
"Having a more simplified checkout page with the help of Postcoder has had two major benefits to our business… Faster checkouts by customers who haven't had to type in their full address and a reduction in data errors; where we saw a big drop in incorrect details entered."
Alex Woods Digital Marketing Executive / Victorian Plumbing
"The reason we like Postcoder is that the rooftop lat/long coordinates have proven to be far more accurate than any other service and Postcoder has hugely increased our successful delivery rates."
Laura Bailey E-commerce Product Manager / Pasta Evangelists
"The auto complete address allows customers to easily checkout by reducing any friction on the address step. We rarely have customer queries or complaints around postcodes or addresses not found or missing."
Kevin R. eCommerce Manager / G2 review
Award-winning API with top performance, easy admin and great support
Businesses rate Postcoder 4.7 stars out of 5 on the world's most trusted software marketplace.
