Developer API

Build QR codes from your own app

One endpoint, one key. Free up to 1,000 requests an hour — enough for most production apps.

Authentication

Send your key in the X-API-Key header on every request.

curl "https://qrscanner.in/api/v1/generate.php" \
  -H "X-API-Key: qrs_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{"type":"upi","fields":{"vpa":"shop@okhdfcbank","name":"Anjok","amount":"499"}}'
            

POST /api/v1/generate.php

Parameter	Type	What it does
type	string	Any of the 45+ QR types, for example url, upi, wifi, vcard.
fields	object	The values for that type. Field names match the studio form.
format	string	json returns the payload. svg or png returns image bytes.
ec	string	Error correction: L, M, Q or H. Defaults to Q.
scale	int	Pixels per module, 2 to 20. Defaults to 8.

Response

{
  "ok": true,
  "type": "upi",
  "payload": "upi://pay?pa=shop%40okhdfcbank&pn=Anjok&am=499&cu=INR",
  "studio_url": "https://qrscanner.in/generator.php?type=upi"
}
            

Examples

PHP

$ch = curl_init('https://qrscanner.in/api/v1/generate.php');
curl_setopt_array($ch, [
  CURLOPT_POST           => true,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_HTTPHEADER     => ['X-API-Key: qrs_your_key_here', 'Content-Type: application/json'],
  CURLOPT_POSTFIELDS     => json_encode([
    'type'   => 'wifi',
    'fields' => ['ssid' => 'Cafe-Guest', 'password' => 'welcome123'],
    'format' => 'svg',
  ]),
]);
$svg = curl_exec($ch);
              

JavaScript

const res = await fetch('https://qrscanner.in/api/v1/generate.php', {
  method: 'POST',
  headers: { 'X-API-Key': key, 'Content-Type': 'application/json' },
  body: JSON.stringify({ type: 'url', fields: { url: 'https://anjok.in' } })
});
const data = await res.json();
              

Errors

Status	Meaning	What to do
401	Key missing or invalid	Check the header name and copy the key again from your account page.
422	Unknown type, or empty result	Confirm the type name and that the required fields are filled.
429	Hourly quota reached	Wait for the next hour, or ask us for a commercial quota.