Compute or verify the GS1 mod-10 check digit for EAN-8, UPC-A, EAN-13, ITF-14 (G...
https://barcode-qr.x402tookit.com/barcode-check-digitOverview
Compute or verify the GS1 mod-10 check digit for EAN-8, UPC-A, EAN-13, ITF-14 (GTIN-14) and SSCC numbers.
Protocol
x402
Price
$0.02
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Barcodes and QR Codes
Source
bazaar
Indexed
2026-11-01 23:12:12
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"code": "4006381333931"
},
"type": "http"
}
Output Schema
{
"example": {
"action": "verify",
"asOf": "2026-10-21T00:45:40.904Z",
"checkDigit": 1,
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"fullNumber": "4006381333931",
"givenCheckDigit": 1,
"name": "EAN-13",
"notChecked": [
"whether the number is allocated to a product or pallet (GS1 registration is not checked)",
"the GS1 company prefix"
],
"payload": "400638133393",
"reasons": [
"Well formed does not mean registered to a product or pallet."
],
"source": "computed locally",
"summary": "EAN-13 4006381333931 has a correct check digit (1).",
"type": "ean13",
"verdict": "VALID"
},
"type": "json"
}