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features
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support

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Description

Postcoder is a global address verification and customer data validation API used by over 10,000 organisations worldwide. Built by Allies Computing, Postcoder helps businesses capture clean, accurate customer data at the point of entry, reducing errors, cutting failed deliveries, and speeding up checkout and onboarding flows. Postcoder's address lookup API lets users find verified addresses instantly using postcode lookup or address autocomplete. Look up addresses based on a postcode, part of an address or a coordinate position. Postcoder provides access to Royal Mail PAF and Multiple Residence addresses, Ordnance Survey AddressBase property records and international addresses in 249 countries. Beyond address verification, Postcoder offers a full suite of contact data validation tools in a single API integration. Bank account validation checks sort codes and account numbers in real time, confirming validity, returning branch details, and verifying direct debit eligibility - useful for subscription businesses, lenders, and anyone collecting payment mandates. Email validation checks formatting, domain validity, and flags disposable or high-risk addresses to keep CRM data clean and improve deliverability. Mobile number validation checks whether a number is active and connected across 200+ countries, helping reduce wasted SMS spend and improve contact rates. For added security, Postcoder also offers OTP verification, delivering one-time passwords via SMS to protect customer accounts at sign-up, login, or checkout. Developers appreciate the comprehensive documentation and sample code, and a 30-day free trial means teams can get up and running in minutes without a credit card.

Description

TrustLookup offers a comprehensive hosted API and web dashboard that facilitates the verification of phone numbers, email addresses, IP addresses, and domains. This powerful API analyzes each input and delivers results for various checks based on user selection. For phone number checks, it evaluates aspects such as validity, format, and line type; users on paid plans can access additional insights like the current carrier, number portability, and real-time HLR status. When it comes to email checks, the service examines syntax, mail servers, mailbox responsiveness, and identifies disposable, role-based addresses, as well as catch-all domains. IP address checks provide details including geographical location, network information, ISP, and indicators for hosting, VPN, proxy, and Tor usage, alongside a complimentary public spam-blocklist verification. Domain lookups yield WHOIS data and details regarding the domain's age. Additionally, free tools are available for checking SPF and DMARC records, along with lookups for VIN, NPI, and USDOT. Users have the flexibility to verify items directly in their browser, utilize the API, or upload CSV files for batch processing. Paid plans encompass Pro phone lookups and the option for CSV uploads, while Growth and Scale packages introduce webhooks, with Growth allowing for up to five team members to collaborate. This service is designed to assist developers and teams in managing signups, contact information, and associated risks effectively. Overall, TrustLookup is an invaluable resource for those needing to ensure data integrity and security in their communications.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

No images available

Integrations

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

Integrations

C# No 
CSS No 
Contact Form 7 No 
Divi No 
Elementor No 
Formidable Forms No 
Forminator No 
Gravity Forms No 
Gutenberg Technology No 
HTML No 
JavaScript No 
Ninja Forms No 
Node.js No 
PHP No 
Python No 
WP Fluent Forms No 
Wix No 

Pricing Details

£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 Trial Yes 
Free Version No 

Pricing Details

$19/month
Starter is $19/month for 7,500 credits. Paid-plan credits roll over for three months. Paid top-ups are $3.50 per 1,000 credits. The free plan includes 250 credits each month.
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) Yes 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) Yes 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Allies Computing

Founded

1987

Country

United Kingdom

Website

postcoder.com

Vendor Details

Company Name

TrustLookup

Founded

2026

Country

Cyprus

Website

trustlookup.io

Product Features

Address Verification

Address Validation Yes 
Autocomplete Yes 
Automatic Formatting Yes 
Data Cleansing Yes 
Data Discovery No 
Data Quality Control No 
Data Verification Yes 
Geographic Maps No 
Geolocation Yes 
Metadata Management Yes 
Reporting / Analytics Yes 
Search / Filter Yes 

Product Features

Email Verification

Bulk Email Verification No 
Catch-all Server Detection No 
Disposable Email Detection No 
Domain Check No 
Mail Server Validation No 
Single Email Verification No 
Spam Trap Detection No 
Syntax Check No 

Alternatives

Alternatives

No Alternatives
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