Data Validation Api

Find out more about our API and website integration

Use our API to validate data in real-time

Data Soap can easily be integrated into your website or existing products/services. This might include integrating into your:

  • Website or online forms
  • Dialler system
  • CRM
  • Microsoft Excel
  • Microsoft Outlook
  • Mobile app

Real-time data validation improves data collection and ensures you have correct email addresses or telephone numbers from your users. Improving the accuracy of your data will boost contact rates, SMS or email delivery and sales, as well as improving compliance.

The Data Soap API is both fast and reliable, backed up with a UK based development team that has over 30 years’ experience in delivering products and services. Our development team are on-hand to help with product set-up and implementation or just to answer any questions you may have.

Our new V2 API has been completely rebuilt from the ground up and now includes enhanced features allowing you to make better and more accurate decisions about data before you act on the result.

All API checks will include our new syntax based results which will provide you with more information on phone numbers including if they are currently allocated to a telecoms provider. If the range of numbers is valid and the location the number is allocated to (currently UK landline numbers only)

The syntax results are included free with any HLR/Landline and email lookup.

View our API documentation and demo here in our dedicated developers portal.

View Documentation


Currently, we have SDK’s set up with C-Sharp and JavaScript/TypeScript with many more coming soon.

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Currently, we have integrations set up with Zapier, Unbounce and Leadshook with many more coming soon.

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Legacy API Documentation

Find information on our old legacy API documentation.

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Try our demos and discover how our API can help you

Mobile Validation

HLR lookup UK & Worldwide

Our Mobile Validation (HLR look-up) service saves you time and money by removing fake, incorrect or dead numbers from your customer lists.

Landline Validation

Enhanced landline number validation

Our enhanced Landline Validation tool will help you identify which of your landline numbers are valid. This will help you have more conversations, improve sales and stop the collection of false data.


UK mobiles & landlines checks

Ensure your numbers aren't on the Telephone Preference Service registers. Our TPS/CTPS & DNC service guarantees your numbers are legal to call, reducing complaints & helping you avoid hefty fines.

Email Validation

High quality email checks

Our Email Validation tool removes incorrectly formatted or undeliverable emails & highlights ‘disposable’ addresses that will become inactive after a short period of time.

Start using our data validation API today

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