VIES API - VAT Information and Exchange System API https://validator.w3.org/feed/docs/rss2.html Contact New Terms of Service for viesapi.eu </br>effective March 2nd, 2026 Planned maintenance work of the website and API interface Downloads VIES Application Checker (GUI) – Portable ZIP VIES API Documentation REST API Documentation Terms & Conditions of Service </br>(English only) Terms & Conditions of Service </br>(English only) Planned maintenance work of the website and API interface VIES Checker Application – New version! VIES Application Checker (GUI) – Windows Installer VIES Programming Libraries (.net, java, php, python, javascript, c/c++) Privacy Policy for Google Sheets™ Users using the VIES API Add-on Python library PHP library VIES API JAVA library VIES Checker CLI/CMD Nip24 Planned maintenance work of the website Planned maintenance work JavaScript (Node.js) library Excel Add-in for VIES verification Google Sheets™ Add-on VIES Validator Google Sheets™ Add-on VIES Validator is available in the official Google Marketplace now! EU VAT CLI/CMD Checker VIES Checker Application – New version! Excel Add-in VIES Validator New Feature: Asynchronous Functions for Batch Requests Blog Microsoft .NET library (C #, Visual Basic, SQL Server, Access, Dynamics, FoxPro and others) We got this! VIES API app is available on make.com (low-code platform) now! Automate Company Record Creation in HubSpot CRM with VIES API and Make.com Planned maintenance work of the website [SOLVED] Serious problems (MS_MAX_CONCURRENT_REQ error) with verifying companies from Germany (DE) in VIES [SOLVED] VIES ERROR: “The maximum number of concurrent requests has been reached” Pricing VIES API application is now available on make.com (low-code platform) VIES survey VIES API – Testing Environment New Feature: getVIESDataParsed – Easily Retrieve a Parsed Company Address! ksefapi.pl – new service for handling e-Invoices Cross-Border e-commerce: automatic VAT verification of foreign contractors in the VIES system VIES Checker Application Planned maintenance work C/C++ library Stripe – new payment method now available! VIES – invalid EU VAT number during verification News