QR Code

Endpoint

GET https://cdn.bizkithub.com/qr

No authentication is required. The response is a PNG image with the appropriate Content-Type: image/png header.

Parameters

Parameter	Type	Required	Description
text	string	Yes	The text or URL to encode.
size	integer	No	Output size in pixels. Default 200, maximum 1000.

Examples

Basic QR code:

GET https://cdn.bizkithub.com/qr?text=Hello%20World

Larger QR code for a URL:

GET https://cdn.bizkithub.com/qr?text=https://bizkithub.com&size=400

vCard contact:

GET https://cdn.bizkithub.com/qr?text=BEGIN:VCARD%0AVERSION:3.0%0AFN:John%20Doe%0AORG:BizKitHub%0ATEL:+1234567890%0AEND:VCARD&size=300

JavaScript helper

function buildQrUrl(text, size = 200) {
const params = new URLSearchParams({ text, size: String(size) });
return `https://cdn.bizkithub.com/qr?${params}`;
}
document.getElementById('qr-image').src = buildQrUrl('https://bizkithub.com', 400);

Response

• Content-Type: image/png
• Body: PNG binary data.

Limits

Metric	Value
Requests per hour per IP	1 000
Maximum output size	1000 × 1000 px
Maximum text length	2 000 characters

Error responses

Status	Meaning
400	Missing or invalid parameters (for example missing text).
429	Rate limit exceeded — retry after a short delay.