Postcoder

Postcoder

Allies Computing
Postcodes.io

Postcodes.io

Ideal Postcodes
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+

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About

Postcoder is an API from Allies Computing that gives developers a single endpoint for verifying and validating customer contact data at the point of entry. Used across sectors from healthcare to retail, it's built to drop into checkout, onboarding, and account creation flows with minimal friction. What's included: Address lookup – Postcode, partial address, or coordinate-based search across Royal Mail PAF, Ordnance Survey AddressBase, and 249 countries worldwide. Bank validation – Real-time sort code and account number verification, with branch data and direct debit eligibility returned in the response. Email validation – Domain and formatting checks with disposable address detection. Mobile validation – Live network status checks across 200+ countries. OTP verification – SMS-based one-time password delivery. Clear documentation, multi-language sample code, and a straightforward REST structure mean integration is quick. 30 day free trial with no credit card required.

About

Postcodes.io is an open source postcode lookup API and geocoder for the United Kingdom that lets developers search, validate, and geolocate UK postcodes while retrieving detailed administrative and geographic information. The API can look up complete postcode records, reverse geocode latitude and longitude coordinates to nearby postcodes, search by partial postcode strings, find nearest postcodes to a location, and query outward codes and places. Responses can include coordinates, regions, administrative districts, counties, wards, parishes, parliamentary constituencies, statistical areas, health geographies, rural-urban classifications, and other associated codes and attributes. Bulk reverse geocoding allows large sets of coordinates to be converted into their nearest postcode areas, while autocomplete and validation methods simplify postcode entry and verification workflows.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Organizations wanting a tool to improve their address lookup and form validation processes

Audience

Developers and organizations seeking to validate, search, geocode, and retrieve geographic or administrative data for UK postcodes through an API

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

£27 per 500 credits
Start with a free trial, then pay-as-you-go or pay monthly. Credit packs start at £27, and monthly plans start at £45. Volume discounts and charity/public sector pricing available.
Free Version Not Supported
Free Trial Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Allies Computing
Founded: 1987
United Kingdom
postcoder.com

Company Information

Ideal Postcodes
United Kingdom
postcodes.io

Alternatives

Postcodes.io

Postcodes.io

Ideal Postcodes

Alternatives

Postcoder

Postcoder

Allies Computing

Categories

Categories

Address Verification Features

Address Validation Supported
Autocomplete Supported
Automatic Formatting Supported
Data Cleansing Supported
Data Discovery Not Supported
Data Quality Control Not Supported
Data Verification Supported
Geographic Maps Not Supported
Geolocation Supported
Metadata Management Supported
Reporting / Analytics Supported
Search / Filter Supported

Integrations

C# Supported
CSS Supported
Contact Form 7 Supported
Divi Supported
Elementor Supported
Formidable Forms Supported
Forminator Supported
Gravity Forms Supported
Gutenberg Technology Supported
HTML Supported
JavaScript Supported
Ninja Forms Supported
Node.js Supported
PHP Supported
Python Supported
WP Fluent Forms Supported
Wix Supported

Integrations

C# Not Supported
CSS Not Supported
Contact Form 7 Not Supported
Divi Not Supported
Elementor Not Supported
Formidable Forms Not Supported
Forminator Not Supported
Gravity Forms Not Supported
Gutenberg Technology Not Supported
HTML Not Supported
JavaScript Not Supported
Ninja Forms Not Supported
Node.js Not Supported
PHP Not Supported
Python Not Supported
WP Fluent Forms Not Supported
Wix Not Supported
Claim Postcoder and update features and information
Claim Postcoder and update features and information
Claim Postcodes.io and update features and information
Claim Postcodes.io and update features and information