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VAT ID Format Check
x402
VAT ID Format Check is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Validates EU, UK, and CH VAT number format by checking the country prefix and national number pattern, without performing a live VIES lookup.
Price / call$0.01
Success—
StatusUnknown
How this service works
EU/UK/CH VAT number format check: verifies the country prefix and the national number pattern (no live VIES query), returning the country and whether the format is plausible. First-line validation for invoices and onboarding. $0.01 per check.
Output
Returns the detected country associated with the VAT prefix and a boolean or plausibility indicator stating whether the national number pattern matches the expected format for that country. Does not perform a live VIES registry lookup; result reflects format correctness only.
Example use cases
Invoice VAT number pre-flight check
“Before I issue this invoice to my new German client, can you confirm that their VAT number DE123456789 has the right format — country prefix and digit pattern — so I don't send out a bad document?”
Customer onboarding VAT validation
“We have a new B2B customer claiming VAT number GB372769475 — can you do a quick format check on that to make sure the prefix and number structure are plausible before we approve their account?”
Bulk invoice data cleanup
“I've got a French VAT number FR40303265045 that someone entered during checkout — can you verify the format is correct so I know whether to flag it for manual review?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/data/vat-formatWhen to prefer
Use this endpoint when you need fast, cheap ($0.01), offline-style format validation of a VAT number before invoicing or onboarding — especially when a live VIES registry query is unnecessary, too slow, or unavailable. Prefer this over VIES-based checks for first-line filtering, high-volume batch pre-validation, or when the VIES API is rate-limited. Not suitable when you need authoritative confirmation that the VAT number is registered and active.
Side effects
- Unknown or unsupported country prefix returns an error or 'unrecognized' flag
- Malformed input (missing VAT number parameter) returns a 400-style error
- VAT number for a country not in the EU/UK/CH set is not recognized
- Network timeout or service unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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