Platform integration

Wix postcode lookup

Add UK postcode lookup and address autocomplete to your Wix site or checkout. Visitors search by postcode, pick their address, and you capture clean PAF-verified data.

No card required · Royal Mail PAF-verified data

Trusted UK address intelligence

31M+
UK addresses
1.8M
Postcodes
99.9%
Uptime
PAF-verified address lookup
Fast REST API & no-code plugins
GDPR-friendly, UK-hosted

Wix address forms rely on manual typing by default. With AutoPostcode, UK visitors search by postcode and select their exact address — populating your fields instantly.

Why Wix sites add it

  • Faster forms and checkout with fewer drop-offs
  • PAF-verified addresses cut failed deliveries
  • Cleaner contact and order data
  • Better mobile experience

How to integrate

Add a custom code element or Velo function that calls the address autocomplete API and maps results to your Wix fields. See the developer docs for formats.

More platforms

On Squarespace or Webflow too? See Squarespace and Webflow, or return to the Postcode Lookup API hub.

Frequently asked questions

How do I add postcode lookup to Wix?

Use a custom code element or Velo to call AutoPostcode's address autocomplete API, then fill your Wix address fields with the selected PAF-verified address.

Does it work with Wix Stores checkout?

It works anywhere you can run custom JavaScript on the page, including Velo-powered forms and embedded checkout steps.

Where does the address data come from?

Addresses come from Royal Mail PAF data — authoritative, complete and correctly formatted.

Ready to get started?

Add Royal Mail PAF-verified UK address lookup to your site in minutes — start free, no card required.