VAT Number Validator
Verify European VAT numbers with real-time VIES database integration.
A comprehensive tool for validating Value Added Tax (VAT) identification numbers across European Union member states. It performs syntax checks, checksum verification, and live status confirmation against official tax databases.
How it works
Three steps. No complex setup.
Format Normalization
The system removes spaces and special characters from the input VAT number to ensure a clean format for processing.
Syntax and Checksum Validation
The engine verifies the country-specific structure and applies mathematical checksum algorithms to detect typos.
Database Verification
For supported regions, the system performs a real-time check against the VIES database to confirm the VAT number is currently active.
Who is it for?
Response example
Real input and output. What you send and what you get back.
// Input
{
"vat_number": "DE123456789"
}// Output
{
"vat_number": "DE123456789",
"vat_normalized": "DE123456789",
"is_valid": true,
"country_code": "DE",
"country_name": "Germany",
"format_valid": true,
"checksum_valid": true,
"error": null
}Try it now
// live demo — no account needed to try
Playground
Integrate into your project
Copy and paste. Replace YOUR_API_KEY with your real key.
curl -X POST https://jsnhengine.com/api/trpc/vatValidator.validate \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"json": {"vat_number":"DE123456789"}}'Why choose JSNH Engine Lab
Low latency
Responses in under 200ms
Secure authentication
API keys with per-plan rate limiting
Usage tracking
Every request logged with metrics
Production ready
Input validation and typed errors
Frequently asked questions
Everything you need to know before integrating.
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// production ready
Start using VAT Number Validator
Sign up free and get 1,000 tokens to start. No credit card. No complex setup.