Best Postcode API Products in 2026

Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.

Key Fetchify features:

Global Address Auto-Complete Postcode Lookup Email Validation Phone Number Validation

Open Source paid Free Trial £25 / Monthly

Do-It-Yourself Data Analytics & Business Intelligence, Powered by AI.

Key Grapple features:

Automatic Data Refresh Universal Data Library Natural Language Map Data

Visit website freemium $99 / Monthly (Per Editor, Unlimited Viewers)

We help businesses improve UX and data quality with a cutting edge address validation service.

Key Ideal postcodes features:

Postcode Lookup Address Autocomplete Address Geolocation UPRN Lookup

Free Trial

The Standard in Global Address Verification.

Key Loqate features:

Global Coverage Accuracy Data Enrichment Easy Integration

UK Postcode Address Lookup API - Maximise E-Commerce Checkouts, Increase Conversions, Reduce Data Entry & Improve Accuracy.

Key Primo Postcodes features:

Comprehensive Data Coverage Easy Integration Cost-Effective Frequent Updates

freemium

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

Key PostalDataPI features:

Specialized Postal Data Simple API Integration Useful for Address Validation Geographic Data Enrichment

A simple API for finding UK postal addresses.

Key getAddress.io features:

Comprehensive Address Database Easy Integration Cost-Effective Postal Code Lookup

Fast, accurate UK postcode lookup API — simple, reliable, affordable, with extra property details built in.

Key ConsumerCloudServices Consumer Address Finder features:

Comprehensive Database User-Friendly Interface Subscription Flexibility API Integration

paid Free Trial £0.01 (per lookup)

Calculate accurate driving distances between UK postcodes in bulk.

Key Distance By Postcode features:

Free to use Simple and intuitive interface Multiple distance units Driving and straight-line distances

freemium £0.01 (Free if you use own API)

API for finding UK postal addresses - More Checkouts, Higher Conversion Rate, Less Data Entry & Better Accuracy.

Highly Scalable API Platform, Software core building blocks to expedite application development.

Key APITier features:

Pay Per Request Pay As You Go Pricing Plan Start querying instantly Performance at any scale

freemium $9 (99)

UK address, email, and phone validation APIs. Sub-50ms p95. Pay-per-request, no tiers, no contracts.

Key Postio.co.uk features:

Address search Postcode lookup UDPRN lookup Email validation

paid Free Trial £0.02 (Address 2.2p (searching is free), Email & Phone 1p)

PCA Predict is a customer data cleansing and enrichment solution.

Key PCA Predict features:

Improved Data Accuracy Enhanced User Experience Seamless Integration International Support

API marketplace and ready to run app backends for your mobile app and website.

Key APILayer features:

Wide Range of APIs Ease of Integration Scalability Reliable Performance

Open Source freemium