QR capacity from the ISO 18004 table: max digits, letters, bytes for a version, ...
https://barcode-qr.x402tookit.com/qr-capacityOverview
QR capacity from the ISO 18004 table: max digits, letters, bytes for a version, or the smallest version for a length.
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": {
"ec": "Q",
"version": 1
},
"type": "http"
}
Output Schema
{
"example": {
"asOf": "2026-10-21T00:45:41.689Z",
"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.",
"ecLevel": "Q",
"notChecked": [
"mixed-mode segmentation (a text with digits and letters can fit in more than one mode's count; this gives single-mode limits)",
"Micro QR and Structured Append"
],
"reasons": [
"Limits are for a single mode over the whole text; real text mixing modes needs the byte limit or smarter segmentation."
],
"source": "computed locally",
"summary": "Version 1-Q: up to 27 digits, 16 alphanumeric, 11 bytes.",
"verdict": "CAPACITY",
"version": {
"dataCodewords": 13,
"errorCorrectionBlocks": 1,
"errorCorrectionCodewords": 13,
"errorCorrectionCodewordsPerBlock": 13,
"maxAlphanumeric": 16,
"maxBytes": 11,
"maxDigits": 27,
"maxKanji": 7,
"modules": 21,
"totalCodewords": 26,
"version": 1
}
},
"type": "json"
}