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Better data = improved retention =
increased revenue
Postcoder helps SaaS businesses capture accurate customer details at sign-up - reducing friction, improving data quality and supporting onboarding flows that keep users engaged.
The hero includes a visual product demo...
Onboarding drop-off starts earlier than you think
For SaaS businesses, the cost of acquiring a customer is already high. When users abandon onboarding because the process is too slow or the forms too cumbersome, that investment is wasted before the relationship has even begun.
Bad contact data compounds the problem. Invalid email addresses mean activation emails never arrive. Incorrect billing addresses create downstream issues with invoicing and direct debit. And a CRM polluted with inaccurate records makes every future campaign, renewal, or upsell more costly.
74%of potential customers will switch to other solutions if the onboarding process is complicated.Inturact
How does Postcoder support SaaS success?
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 SaaS
Everything you need to verify customer data at onboarding and beyond:
Address lookup
Fast, accurate address capture via postcode lookup or autocomplete - for 249 countries.
Email validation
Real-time validation to ensure activation emails and onboarding sequences reach real inboxes.
Mobile validation
Verify mobile numbers are genuine and live before triggering MFA or SMS onboarding flows.
OTP verification
Standards-compliant one-time password verification for secure account registration and login.
Bank validation
For SaaS products with direct debit billing or payment features, validate account and sort code details at the point of entry.
What our customers say
"Postcoder offers a seamless integration with our services. It is very popular with our customers."
James Gutterson Commercial Manager / Signicat
"Postcoder offers exactly what we need. Being able to offer our customers a trial of our software alongside Postcoder's free trial is ideal. The costs are very competitive and we have been very impressed with the precision of the data."
Josh Robinson Director of Sales and Marketing / Kodawaste
"Postcoder is a great tool we've integrated directly into our applications for checking addresses, emails, mobile numbers, and bank details. It's really reliable and easy to use, fitting perfectly into our systems without any hassle."
Verified user Software industry / 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.
