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 £25.0 / Monthly

The Website Builder for Startups.

Key Umso features:

User-Friendly Interface Customization Options Integrated Tools Responsive Design

Visit website freemium $14.0 / Monthly (Basic)

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 Standard in Global Address Verification.

Key Loqate features:

Global Coverage Accuracy Data Enrichment Easy Integration

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

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)

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

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 $9.0 (99)

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 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

PCA Predict is a customer data cleansing and enrichment solution.

Key PCA Predict features:

Improved Data Accuracy Enhanced User Experience Seamless Integration International Support

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

Key Smarty features:

Affordability Flexible Plans No Credit Check Unlimited Calls and Texts

Open Source freemium