Skip to content

Address Validation API for Developers

Don’t let bad addresses break your build

Invalid address data leads to bugs, failed tests, and production issues. Validate addresses before they cause problems. Our Address Finder API helps you fix address errors at the source.

Lat. 51.5034. Long. 0.1276 (5)
Open Sandbox

Let's play

Test our address lookup API. No code needed

πŸ”’ Requires API Key - Get Yours Free

For devs who ship fast

<100ms Response

Faster checkouts. Better UX

Full Coverage

Rooftop Geocodes & UPRNs included

Fits Any Stack

Add our drop-in script or JSON-API

Speak to an Engineer, Fast

Chat, email, or call for code-level help

Auto-Scales

Handles millions of requests per minute

ISO Certified

GDPR compliant, data stays local

Explore our Address Finder API Features

Popular Customisation Options


  • Retrieve additional address data
    Access UPRNs, geocodes, and other enhanced address metadata
    Read more
    β†’

  • Restrict search by country
    Limit address results to specific countries to streamline user input
    Read more β†’

  • Display full address in one line
    Display full address in one line
    Read more
    β†’

  • Global datasets
    UK & international address data from official sources 
    Read more  β†’

Most Used Configuration Options

  • API Key Security Management
    Protect your key with usage caps and allowed domains
    Read more β†’

  • API Key Settings
    Control usage and daily limits in your dashboard
    Read more β†’

  • Automated Top-ups
    Avoid disruptions with auto-renewing credit top-ups
    Read more β†’

  • Allowed URLs
    Lock your API key to specific domains for added security
    Read more β†’ 

Built for Developers. Supported by Engineers

Talk directly to real engineers. No ticket queues. Get code-level answers and fixes fast.

 

 
 

Start Free. Go Live Today

No Credit Card Required Β· 200 Free Lookups