AddressBrain vs Data8
Data8 alternative with monthly pricing for UK address lookup
Data8 is a data quality company offering address, email, phone and bank validation plus data cleansing services, sold on prepaid credits. AddressBrain focuses on Royal Mail-licensed UK postcode lookup, autocomplete and validation, on monthly plans built for production checkouts and onboarding flows.
Free trial: 30 lookups a day for 30 days. No card required.
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Sub-50ms response times
Free trial, no card required
The honest comparison
Broad data quality, or focused address capture
Data8 covers a lot of ground: address capture, validation of email, phone and bank details, and batch cleansing and deduplication of existing databases. If you need that whole toolkit, one supplier is simpler.
Its postal address validation is sold as prepaid credits valid for 12 months, from 1,000 for £60 (6p each) to 25,000 for £1,000 (4p each), with a £25 minimum order (October 2026). AddressBrain sells monthly allowances.
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When Data8 makes sense
If you need to clean and deduplicate a large existing database, or want address, email, phone and bank checks from one place, Data8's range of services is a strong fit. We would rather say so than pretend otherwise.
When AddressBrain makes sense
If address lookup runs in a live checkout or onboarding flow every day, you want a fixed allowance that scales, a known monthly bill and a plan you can move up or down. That is what AddressBrain's plans are for.
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Included on every AddressBrain plan
Postcode lookup, autocomplete, validation, new-build coverage and 1.4m UK business names, in the free trial and on every paid plan. Nothing is a bolt-on.
Pricing side by side
Nine plans, one page, no credit maths.
AddressBrain plans run from £49 a month for 1,000 lookups (4.9p) to £999 for 33,000 (3.0p), with volume pricing above that. Data8's published address validation credits run from 6p (1,000) to 4p (25,000), valid for 12 months. At steady monthly volume AddressBrain's per-lookup rate is lower; at low or irregular volume, prepaid credits can suit better.
Monthly plans, change or cancel any month.
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Overage charged per lookup, or we recommend a better plan.
Free trial: 30 lookups a day for 30 days, no card required.
Volume pricing and annual terms when you need an SLA.
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Data and response
Royal Mail PAF, structured, in under 50ms.
Every AddressBrain result is a full PAF-formatted address returned as separate fields, with sub-building and building name handled properly, and typical UK response times under 50ms.
Search on a postcode, a partial address or a business name.
Sub-building, building name, thoroughfare, post town and postcode as separate fields.
New-build addresses and 1.4m UK business names included.
Batch and single-lookup validation on the same key.
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Getting started
Create an account, copy the key, make the first call.
Data8 offers a trial of up to 14 days with 100 free credits. AddressBrain's trial is 30 lookups a day for 30 days, no card required, with a test environment, full docs and support, and your developer can have it live in an afternoon.
Authenticate with a single API bearer token, no OAuth handshake.
Free trial includes 30 lookups a day for 30 days. No card required.
Live usage dashboard, so you can watch spend as it happens.
Distributed, auto-scaling architecture, so peak trading traffic does not queue behind one database.
On every plan, including free
What you get out of the box
Sub-50ms UK response times.
Full PAF-formatted address data, including new-build coverage.
Batch and single-lookup validation on the same key.
Start building in minutes
Create a free account and start returning validated UK addresses in minutes.Start with 30 free lookups a day for 30 days. Test environment, full API docs, and support included.
No credit card required. Officially licensed by Royal Mail.
No credit card required. Officially licensed by Royal Mail.