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NoJunk QR Batch Code Generator
x402
NoJunk QR Batch Code Generator is a paid API for AI agents from nojunk-qr.mick8511.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Generates up to 25 QR codes in a single call, returning each as SVG, PNG, or JSON module matrix from a fully self-contained ISO/IEC 18004 encoder.
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call QR Code generation for agents: turn any text, URL, Wi-Fi string or payment URI (up to 1500 characters) into a standards-compliant QR Code as crisp SVG, real PNG or a JSON module matrix; batch up to 25 codes in one call. Full ISO/IEC 18004 encoder (versions 1-40, ECC L/M/Q/H) computed in the Worker, no upstream services. You are only charged when a valid QR code is returned.
Output
A JSON object containing the requested format (svg, png, or json), the ECC level used, the count of items, and an array of result objects — each with the original text, optional label, the QR payload (SVG document string, base64 PNG, or 0/1 module matrix), QR version number, and module grid size.
Example use cases
Event check-in badge QR codes
“I need 10 QR codes as PNGs, one for each of these attendee profile URLs — generate them all at 1024px with M error correction and black modules on a white background.”
Restaurant Wi-Fi table cards
“Create 5 identical SVG QR codes encoding my Wi-Fi credentials WIFI:T:WPA;S:CafeLunaGuest;P:Latte2024;; so I can print them on table cards — use H error correction so they still scan even if a bit worn.”
Product packaging QR code set
“Generate QR codes for these 20 product page URLs in one batch — I want SVG format with Q error correction so they survive printing, and make the modules dark navy (#1A2340) on white.”
Technical details
Endpoint
POSThttps://nojunk-qr.mick8511.workers.dev/qr/batch?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need ISO-compliant QR codes generated entirely server-side with no external upstream dependencies, especially for batch workloads (up to 25 codes per call) or when output format flexibility (SVG for infinite scaling, PNG for raster embed, JSON matrix for custom rendering) matters. It is pay-per-valid-result via x402, so it is cost-efficient for sporadic agent use without subscription overhead. Prefer it over generic QR SaaS APIs when you need deterministic, offline-capable encoding with full ECC and version control.
Side effects
- Text input exceeds 1500 characters — encoder rejects the item
- Batch array contains more than 25 items — returns validation error
- Invalid hex color string for dark or light modules — parameter rejected
- Size out of range (below 128 or above 2048) — parameter rejected
- Margin out of valid range 0-8 — parameter rejected
- Payment not completed (x402 flow) — no QR code returned and no charge applied
- Empty text field in any batch item — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ecc | string | Optional: error correction level L (7%), M (15%, default), Q (25%) or H (30%); higher levels survive more damage but hold less text |
| dark | string | Optional: hex color of the dark modules (default #000000) |
| size | integer | Optional: output width/height in pixels, 128-2048 (default 512); SVG scales freely, PNG uses whole pixels per module centred in the image |
| items | array | 1-25 items, each {text (1-1500 chars), label?} |
| light | string | Optional: hex color of the background (default #FFFFFF) |
| format | string | Optional: "svg" (default; each item carries its SVG document) or "json" (each item carries its 0/1 matrix) |
| margin | integer | Optional: quiet zone in modules, 0-8 (default 4; the standard recommends 4) |
Output
Schema · Response
{
"type": "json",
"example": {
"ecc": "M",
"count": 2,
"items": [
{
"text": "https://nojunkcrypto.com",
"label": "home",
"matrix": [
"1111111000011010101111111",
"1000001000011001101000001",
"1011101010110001001011101",
"1011101010100110101011101",
"1011101010010010101011101",
"1000001010101011001000001",
"1111111010101010101111111",
"0000000011010000000000000",
"1011111001011111101111100",
"0110010100011100100100010",
"1000101100010111110011011",
"1111110100101010010110001",
"0110011000000101011010111",
"1101000100001100100101010",
"1011001110100111100111011",
"1001110111101000000110001",
"1011001001101110111110100",
"0000000011100001100011000",
"1111111001011100101010111",
"1000001011010010100011001",
"1011101011111111111110100",
"1011101011001101111011111",
"1011101011000110110001101",
"1000001001000011111111001",
"1111111010011110011111111"
],
"modules": 25,
"version": 2
},
{
"text": "WIFI:T:WPA;S:MyNetwork;P:secret123;;",
"label": "wifi",
"matrix": [
"11111110000011010101001111111",
"10000010011111111110101000001",
"10111010100111000001001011101",
"10111010110110101001001011101",
"10111010100000000001101011101",
"10000010101100011010001000001",
"11111110101010101010101111111",
"00000000110110100011000000000",
"10111110010000001110101111100",
"00010001111111100101101010110",
"11000110110001111110111101000",
"10010101100011000011111010011",
"10111011100000111101000111100",
"10110100000000000001110110110",
"10110110110100010110101100100",
"00011100110010100001100001000",
"10000010001000011100100101011",
"11011100101011100011101011010",
"10001110001101111000011110000",
"10100100001011010000100010001",
"10111110111110111100111111100",
"00000000100010000011100010100",
"11111110010100010111101010100",
"10000010101110111001100011010",
"10111010110000011100111111000",
"10111010101010101001000011011",
"10111010100011011111010111110",
"10000010000110111010101011010",
"11111110100111110101011011000"
],
"modules": 29,
"version": 3
}
],
"format": "json"
}
}Tags
x402
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