validate-vin x402 REST usage
North American VIN check-digit validation (NHTSA standard, position 9) plus WMI manufacturer lookup for a small set of known codes.
0.002 USDC per call
per call
Check Digit
3 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Barcode x402 REST
Barcode check digit validator in one GET: EAN-13, UPC-A, EAN-8, ISBN-10 and ISBN-13 — returns the symbology, the check digit it carries, the expected check digit and whether the number is valid. curl: GET /barcode?code=9...
0.001 USDC per call
per call
x402-isin-check x402 REST
Is this ISIN well formed? One GET applies the ISO 6166 check digit and returns valid, the supplied and expected check digit, the checksum total, the country code and name, and the 9-character NSIN. Malformed input is 400...
0.001 USDC per call
per call