VAT Number Validation

live FinanceUtility

Validate the FORMAT of EU/UK/CH/NO VAT registration numbers offline (keyless) against official country patterns. Format only — does not confirm the number is registered (use EU VIES for that).

2 tools
0ms auth
free tier 50 calls/day

Tools

validate_vat

Validate the FORMAT of a VAT registration number for the EU (+ UK/CH/NO), keyless & offline. Accepts the number with its country prefix ("DE123456789") or a national number plus `country`. Returns whe

No parameters required.

▶ Try it
list_vat_formats

List the supported countries and their VAT-number formats.

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/vat/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/vat/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"validate_vat","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("validate_vat", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("validate the format of eu/uk/ch/no vat registration numbers offline (keyless) against official country patterns");