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QR Code API – Styled QR Code Generator
x402
QR Code API – Styled QR Code Generator is a paid API for AI agents from qr.payapi.market, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Generates a styled, customizable QR code image (PNG, base64-encoded) from a text string or URL with configurable colors, size, border, and error correction.
Price / call$0.001
Success—
StatusUnknown
How this service works
Generate and decode QR codes with x402 payments and an MCP server.
Output
Returns a JSON object containing a base64-encoded PNG image of the QR code along with metadata: pixel dimensions (width, height), number of modules, QR version, box size, border, error correction level, file size in bytes, and the echoed color settings. The agent can use the image_base64 field directly to embed or save the image.
Example use cases
Branded QR code for product packaging
“Create a QR code for https://mybrand.com/product/launch with a navy blue foreground (#1a2e6b) on a white background, H error correction, 4-module border, and 12 pixels per module — I need a high-quality image to put on product packaging.”
Event check-in QR code
“Generate a QR code that encodes the text 'EVENT-2024-CHECKIN-VIP' with a black foreground on a white background, Q error correction level, a border of 2 modules, and box size of 15 pixels.”
Marketing flyer with custom colors
“Make a QR code for https://promo.example.com/summer-sale using a green foreground color (#16a34a) on a light gray background (#f3f4f6), M error correction, default border and box size — I'm dropping it into a flyer.”
Technical details
Endpoint
POSThttps://qr.payapi.market/generate/styled?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a styled, customizable QR code image returned as a base64 PNG — especially when brand colors, specific pixel density, or higher error correction are required. It is ideal for programmatic generation at low cost ($0.001 USDC) via x402 micropayment, without requiring an API key or subscription. Prefer it over generic free QR services when color customization, per-call pricing, or machine-to-machine workflows are needed.
Side effects
- Data string exceeds 4296 characters — QR encoding capacity exceeded
- Invalid hex color format for back_color or fill_color — malformed input error
- box_size out of 1–40 range or border out of 0–20 range — validation error
- Payment not settled (x402 micropayment of $0.001 USDC required) — 402 Payment Required response
- Invalid error_correction value (must be L, M, Q, or H) — bad request
- Empty or missing 'data' field — required parameter absent
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | string | Text or URL to encode, up to 4296 characters. |
| border | integer | Quiet-zone border in modules, 0-20. Default 4. |
| box_size | integer | Pixels per module, 1-40. Default 10. |
| back_color | string | Background colour as #rgb or #rrggbb hex. Default #ffffff. |
| fill_color | string | Foreground colour as #rgb or #rrggbb hex. Default #000000. |
| error_correction | string | Error-correction level: L, M, Q, or H. Default M. |
Output
Schema · Response
{
"type": "json",
"example": {
"data": "https://payapi.market",
"width": 370,
"border": 4,
"format": "png",
"height": 370,
"modules": 29,
"version": 3,
"box_size": 10,
"back_color": "#ffffff",
"fill_color": "#1d4ed8",
"size_bytes": 640,
"image_base64": "iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAABmJLR0QA/wD/AP+gvaeTAAAF...",
"error_correction": "H"
}
}Tags
x402
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