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What is Postcoder?

Postcoder – Customer Data Verification Made Simple. Trusted by NHS, Sky, KFC, Rightmove, and over 10,000 organisations globally, Postcoder is the all-in-one API platform from Allies Computing that helps businesses collect accurate, verified customer data from the very first interaction. Rated 4.6 stars on G2 and the winner of multiple industry awards, it's the toolkit that keeps forms fast, data clean, and customer journeys completely friction-free. Postcoder's address lookup lets customers find their address in seconds — whether they type a postcode, begin entering a street name, or search by geographic coordinates. The service draws on Royal Mail PAF, Multiple Residence data, Ordnance Survey AddressBase, and international address databases spanning 249 countries, delivering consistently high match rates both in the UK and overseas. Beyond addresses, Postcoder packages a full suite of contact data tools into a single API integration: - Bank account validation: Confirm sort code and account number combinations in real time, retrieve branch-level details, and establish direct debit eligibility before a payment mandate is submitted. - Email validation: Go beyond syntax checks to assess domain health, detect disposable addresses, and score deliverability risk, keeping CRM lists and transactional inboxes reliable. - Mobile number validation: Confirm whether a mobile is live and reachable across more than 200 countries, cutting wasted spend on undeliverable SMS communications. - OTP verification: Add an SMS-based one-time password layer to sign-up, login, or checkout flows to protect accounts and verify identity at the point of entry. Rather than managing multiple vendors, businesses get one integration, one dashboard, and one support team. Getting started takes minutes — a free trial is available with no payment details required, and the documentation includes ready-to-use sample code across popular languages.

What is MaxCASS OS?

Anchor Software's MaxCASS OS is a CASS™ Certified solution designed to standardize addresses for the United States Postal Service®. This software not only updates mailing lists and customer databases with the most accurate and up-to-date address information but also enhances the overall efficiency of mailing processes. MaxCASS OS can operate in either batch mode for processing extensive mailing lists or in real-time mode for immediate address look-ups. Additionally, it incorporates MaxMover functionality, which is Anchor Software's certified interface to the USPS NCOA®, enabling seamless address standardization, correction, and change-of-address processing in a single operation. Having high-quality address data is crucial for fostering strong customer relationships. Furthermore, the validation and verification components for address verification are vital elements of an effective data governance strategy, playing a critical role in the success of businesses today. In a world where accurate communication is key, these tools provide a significant advantage for organizations seeking to optimize their mailing efficiency.

Media

Media

Integrations Supported

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

Integrations Supported

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

API Availability

Has API

API Availability

Has API

Pricing Information

£27 per 500 credits
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Allies Computing

Date Founded

1987

Company Location

United Kingdom

Company Website

postcoder.com

Company Facts

Organization Name

Anchor Software

Date Founded

1998

Company Location

United States

Company Website

www.anchorcomputersoftware.com/maxcassos

Categories and Features

Address Verification

Address Validation
Autocomplete
Automatic Formatting
Data Cleansing
Data Discovery
Data Quality Control
Data Verification
Geographic Maps
Geolocation
Metadata Management
Reporting / Analytics
Search / Filter

Categories and Features

Address Verification

Address Validation
Autocomplete
Automatic Formatting
Data Cleansing
Data Discovery
Data Quality Control
Data Verification
Geographic Maps
Geolocation
Metadata Management
Reporting / Analytics
Search / Filter

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