On this page, you can download and use all the tools we provide, such as integration libraries, applications, and an Excel add-in, which guarantee reliability and operational continuity:

  1. Reliability – Our API is designed to handle high loads more effectively, reducing the chances of encountering errors like MS_MAX_CONCURRENT_REQ that can occur with the public VIES API during peak times. You can read more about solving this problem in our blog article: https://viesapi.eu/vies-error-the-maximum-number-of-concurrent-requests-has-been-reached-fr/
  2. Continuous Operation – Our cloud-based infrastructure ensures continuity of operation, meaning your users are less likely to experience IP blocking.
  3. Mass Verification Tools – For users without a programming background, we offer tools like an Excel add-in and a VIES Checker Application, which allow for easy mass verification of VAT numbers. Additionally, the VIES Checker application supports batch data processing, which mitigates the MS_MAX_CONCURRENT_REQ error.

In order to download a file, click on its link and save the ZIP archive on a local disk. The process of installing and configuring individual files is described in the Documentation tab.

By downloading and using the software below, you accept the terms and conditions of the viesapi.eu service.

Attention! Unfortunately, Firefox and Windows Defender incorrectly (false positive) recognize file signatures. This applies specifically to the ExcelDNA library used in the add-on, which may be blocked by some antivirus systems. Below is a screenshot of a downloaded file blocked in Firefox:

excelDNA false positive

This problem may occur when downloading the Excel Add-in and libraries for PHP, Python, and C/C++.

With this in mind, we would like to assure you that our files do not contain malware.


Antivirus scan result: https://www.virustotal.com/gui/file/610de9ef5bb69d796fd99df7e4f02df61ddab922e1440ab27506e7fd912cfc3f

Antivirus scan result (setup): https://www.virustotal.com/gui/file/8425bfdc0aa7895ba24244ff1802f6b1eb1dc92aaaec6850ab02beb743992d08

Antivirus scan result (portable): https://www.virustotal.com/gui/file/e6b681eadd964e5fc4954f038ab5aaf9aa220ba4be93481add2853d12de2f7cb


Antivirus scan result: https://www.virustotal.com/gui/file/0bfebe6fb4f663d052e4677c93cef7d6f2a4baab74fb828e57343a067cbe5abb

Antivirus scan result: https://www.virustotal.com/gui/file/6b51b6d2d62c146ddb5e8e2cf2cd8b562d7b4b1f9b79d653a80a7b81e9bd7751

Antivirus scan result: https://www.virustotal.com/gui/file/e87bedd91e23155ff43bfb5652d62c629dea8cd1c56d628d68dc734d0bb49102

Antivirus scan result: https://www.virustotal.com/gui/file/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Antivirus scan result: https://www.virustotal.com/gui/file/61f4b798f04c1204d74a50ffa3cfd774d2ded8414fc8a890dd68aed5e8de3283

Antivirus scan result: https://www.virustotal.com/gui/file/baf38aba65e4d38dbd28ff15cee376d6a03b2e3c3f125656f239fbca54536ed6

Antivirus scan result: https://www.virustotal.com/gui/file/93d42716ce1c0c7a12db6300a2634d2716a34178d6f76cbc41e6a52e76b46653

Attention! If the above table lacks a library or application that would be dedicated to your programming language / system / application, please contact us to agree on the possibility of its development by our experienced team of programmers.