Why APIs for VIES are the best?

We provide our products and services so that the integration with the VIES system is quick and effective.

Processes automation

Automatic verification of entities in the VIES system (available from Microsoft Excel, VIES Checker Application/CMD and Libraries).

Applications integration

The fastest possible integration with the use of shared libraries, applications, scripts or REST API interface.

Support & 99.9% SLA

We know that availability is the key, therefore in our terms, we guarantee the accessibility of our systems at the highest possible level.


Changes only make sense when they bring the expected benefits.
Below, we present the measurable benefits of using our services and products, along with a brief description of how to achieve them. We encourage you to contact us to present a comprehensive offer.

Automatic data entering


Any order form can be filled in automatically with the company's data on the basis of the EU VAT number provided

Accelerating customer service


Instead of manually entering a new contractor, insert the EU VAT number and all the necessary data will be downloaded

Reducing the cost


Less staff due to optimatization and automatization of key processes by using business data

Saving time


Automated checking of entities in the VIES system available from MS Excel VIES API add-in, VIES Checker App/CMD and libraries

Test the capabilities of Libraries (e.g. C#, Java, Python, PHP, JavaScript) VIES Checker App or MS Excel Add-in without creating an account

We are at your disposal

Do you need a customized offer? Do you want to know more? Or maybe there is a technical problem? Feel free to contact us!
Sales department

Sales department

We are here to establish cooperation, set terms and conditions and to help in the most effective implementation of our agreements.
By contacting us you will get the information on:
– what services and products we offer
– which ones are free of charge
– we will provide you with a tailored offer

Technical support

Technical support

We help to integrate our products, provide assistance in solving technical problems and support our customers remotely.
We support with:
– installation and configuration of plug-ins for online stores
– Integration of desktop applications with our online services

  • vies excel add-in
  • vies java library
  • vies .net (c#) library
  • vies python library
  • vies application checker
  • vies php library
  • vies node.js library
  • vies c/c++ library
  • vies cli cmd tool


News and articles. Everything about VIES what you should know.

Get in Touch

Call or send us a message

Find us

NETCAT - IT Systems, Zagłoby 21/10 Street, 02-495 Warsaw, Poland. EU VAT: PL7272445205

Give us a ring

Customer Service Office: +48 222 199 199 Mon - Fri, 10:00-17:00 (UTC +1)

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