Bulk VAT Number Validation
Validate EU VAT numbers via the official VIES API. Requires a small Cloudflare Worker proxy to handle CORS correctly.
Step 1 — Enter your Cloudflare Worker URL
not tested
Deploy
Haven't set it up yet? See the
worker.js (included in the download) to a free Cloudflare Worker, then paste the URL above.Haven't set it up yet? See the
SETUP.md file for step-by-step instructions (takes ~2 minutes).
VAT Numbers
Include the 2-letter country code prefix (DE, FR, NL, PL, IT, SE, BE, DK…). Paste a column from a spreadsheet. Requests run sequentially to avoid VIES rate limits.