Postcode Lookup and Validation API


On top of the option of integrating directly with our API, we have pre-built SDKs, plugins, tools and examples that help developers to quickly integrate address input and form validation. If you require any guidance with any of our implementation options do get in touch on 01624 811712 or email


AFD Software's Postcode Evolution (PCE) service is a lightning fast API that that searches and retrieves addresses from large address databases such as the Royal Mail’s Postcode Address File (PAF).


Our servers are optimised for speed.

Task Term Results Returned Same Network (Installed) UK IP Address (Hosted)
Lookup AB10 1AB 1 34ms 47ms
Lookup BA5 1FU 10 26ms 45ms
FastFind bakery 100 56ms 76ms
FastFind towns end 100 38ms 90ms
Search street=covent gardens 49 155ms 314ms
Search postcode=HD7 5QZ 6 55ms 56ms

Not Just Addresses

As well as address lookup and validation AFD also validates the following


PCE is capable of outputting responses in either JSON, JSONP or XML giving developers flexibility when integrating PCE into their project.


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