Postcoder

Postcoder

Allies Computing
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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

One in five addresses contains errors that can result in late or undeliverable mail and shipments. Our address validation US service verifies and corrects addresses to ZIP+4, ensuring addresses are valid and deliverable, avoiding costly shipping and customer service issues. Encompassing multiple authoritative sources, our validation engine leverages over 160 million USPS addresses, as well as an additional 15 million non-postal addresses to validate and correct US mailing and shipping addresses with unparalleled precision. Our engine surpasses the stringent requirements of the USPS, exceeding their CASS (Coding Accuracy Support System) accuracy standards. Our software focuses on address precision, significantly mitigating costs associated with undeliverable, lost, or returned mail. Whether shipping products or mailing invoices, Service Objects Address Validation ensures delivery while avoiding costly address correction fees from the USPS and third-party shippers.

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

Enterprises in need of a solution to ensure deliverability through advanced US address validation tools

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support 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

$299/month
The free trial offering includes the following:

- Access to 22 validation APIs.
- Test customer data validation APIs with seamless integration.
- 500 free test transactions.
- Enjoy 500 risk-free test validations.
- In-depth developer guides.
- Explore comprehensive guides to unlock our full potential.
- Dedicated customer support.
- Receive personalized support whenever you need it.
Free Version Not Supported
Free Trial 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 Supported
In Person Not Supported

Company Information

Allies Computing
Founded: 1987
United Kingdom
postcoder.com

Company Information

Service Objects
Founded: 2001
United States
www.serviceobjects.com/address-validation-us/

Alternatives

Postcodes.io

Postcodes.io

Ideal Postcodes

Alternatives

MaxCASS OS

MaxCASS OS

Anchor Software
AccuMail Verify

AccuMail Verify

SmartSoft

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

Address Verification Features

Address Validation Supported
Autocomplete Supported
Automatic Formatting Not Supported
Data Cleansing Supported
Data Discovery Not Supported
Data Quality Control Not Supported
Data Verification Supported
Geographic Maps Not Supported
Geolocation Supported
Metadata Management Not Supported
Reporting / Analytics Not Supported
Search / Filter Not 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 Service Objects Address Validation and update features and information
Claim Service Objects Address Validation and update features and information