Address autocomplete

User-friendly address lookup API with accurate postal data. Built by Swiftcomplete, the experts in address autocomplete technology

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Search by any part of the address, such as the building, street or postcode

Fast, accurate & user-friendly address search

Swiftcomplete's address autocomplete API is the best way to add an accurate mailing address lookup to your website form, checkout or application.

Rather than having to type out the whole address by hand, our address search instantly suggests relevant addresses as you begin typing, matching every keystroke in real-time against the most accurate postal address databases.

Using address autocomplete reduces the time it takes to enter a fully verified address by up to 80% - great for improving checkout conversion rates, and eliminating typos and mistakes.

Using address autocomplete to speed up and improve address entry

Address autocomplete features

Autofill an address from a postcode

Start searching by the postcode or any part of the address, and receive address suggestions in the correct local postal format.

Fuzzy address matching increases match rates by handling typos, abbreviations, missing words and accented characters.

Autofill an address from a postcode
Swiftcomplete Places uses loction biasing to find addresses faster

Find results faster with location biasing

Location biasing reduces the number of keystrokes required to find an address by up to 75%, by automatically prioritising addresses near your current location (determined by your IP address).

Ecommerce sites and high street stores can preset bias location(s) towards their most popular delivery areas, and for even greater accuracy, users can share their current location to find addresses in a couple of keystrokes.

Address data coverage

At the moment, Swiftcomplete is available in the following countries:

    We regularly expand and improve our data coverage.

    Do you have a requirement for a particular country or dataset? Get in touch and we'll let you know where it is on our priority list.

    Try it now

    To provide the best user experience, the address autocomplete API can be customised and integrated to suit your individual app or website. If you'd like to discuss your use-case with us, get in touch and we'll be happy to help.

    1: Single Line Address Autocomplete

    Automatically populate address fields from an autocomplete search box

    This integration reduces the size of your form by only showing address fields once an address has been selected.

    Integrate single line autocomplete

    Sign up for an account to create an API key and get started

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    2: Postcode Lookup

    Automatically populate address fields from a postcode and building name or number

    Enter a postcode, select your property and Swiftcomplete will fill in the rest of the form.

    Integrate postcode lookup

    Sign up for an account to get started

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    Address Validation Pricing

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    5.8p/ address (£29 pack)

    Credits are valid for up to 12 months - any unused lookups expire at this point.

    All prices in GBP and exclude VAT

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