QR Code API Quick Start

The QR Code Genius API lets you generate QR codes programmatically: fully-styled PNG images, bulk batches with scan tracking, and lightweight images you can embed directly in a web page or email.

Create an API key

1. Sign in and open the Developer Dashboard.
2. Click Create API Key and give it a name.
3. Copy the key immediately — it is shown only once. Only a secure hash is stored on our servers, so a lost key must be revoked and replaced.

Keys look like this:

qrc_9f8a7b6c5d4e3f2a1b0c9d8e7f6a5b4c...

Base URL

https://www.qrcodegenius.com/api/v1

Your first request

Pass your key in the Authorization header and POST the content you want to encode:

curl -X POST https://www.qrcodegenius.com/api/v1/qr \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "data": "https://example.com", "width": 512, "height": 512 }'

The response contains the QR code as a base64 PNG data URL, plus your current usage:

{
  "success": true,
  "data": "data:image/png;base64,iVBORw0KGgo...",
  "meta": { "usage_count": 1, "remaining": 49, "strategy": "monthly" }
}

Endpoints

• POST /qr — generate a single, fully-styled QR code. See Generate a QR code.
• POST /qr/bulk — generate up to 100 QR codes in one call and save them to your account, optionally as trackable dynamic codes (Pro plan). See Bulk QR generation.
• GET /render — a fast, cacheable PNG you can use directly in an img tag. See Embed a QR image.

Plans and limits

• Free: 50 API requests per month.
• Pro: 1,000 API requests per month, plus access to bulk generation.
• Purchased credits are used automatically once the monthly allowance runs out.

See Errors and rate limits for details on quotas and error handling.