🎉 New free API to generate your QR Codes

Good news! I am providing a free API that allows you to generate your own QR codes (text, link, or SEPA payment).
Easy to use, it works directly from your browser or your applications, with a limit of 5 QR codes per day per user.

📌 Why a QR Code API? 

QR Codes have become essential:

• Add a link to your site
• Share your contact information
• Receive an instant bank payment (SEPA in Belgium/France/Europe)
• Or simply encode a small text.

Our API allows you to do this without complicated registration, with a reasonable quota to prevent abuse.

🔑 Your User ID

To use the API, you must be logged into your Digital3D account, where you will find your key.

• Go to your profile,
• Copy your User ID (UUID), a long string of characters like:

⚠️ This User ID is mandatory. Without it, the API will not respond.

📍 The two available endpoints

1. Text / link QR Code

Encode any text or URL into a QR Code.
👉 Example to display "Hello World":
    GET https://qr.digital3d.com/api/QrCreator/NormalQr?userId=YOUR_USERID&text=Hello%20World&format=Png&size=6

• userId → your identifier (mandatory)
• text → content to encode
• format → Png or Svg (optional, default = Png)
• size → size of the QR (1–20, default = 4)

➡️ The result is directly an image (image/png or image/svg+xml).

2. SEPA payment QR Code (EPC QR)

Create a QR that your friends or clients can scan in their banking app to pay you.
👉 Example JSON :
      POST https://qr.digital3d.com/api/QrCreator/PaymentQr Content-Type: application/json { "userId": "YOUR_USERID", "beneficiaryName": "ACME SPRL", "iban": "BE68539007547034", "bic": "GKCCBEBB", "amount": 12.34, "remittance": "Invoice 2025-001", "outputFormat": "Svg", "size": 8 }

➡️ The result is also an image of a QR Code.

🚦 Quota and errors

Each user can create up to 5 QR codes per day.
If you exceed, the API returns a clear JSON error:

{"type":"https://httpstatuses.com/429","title":"Quota exceeded","status":429,"detail":"Maximum usage for today : 5 (limit 5)","userId":"abscdef-5555-ffff-yyyy-xxxxxxx","used":5,"limit":5}

🛠️ For beginners

• Test directly in your browser with the NormalQr endpoint.
• For payment (endpoint PaymentQr), use a tool like Postman or your preferred programming language (C#, Python, JavaScript…).
• No need for complicated libraries: the API already returns a ready-to-use image.

✅ In summary

• Free: 5 QR codes per day per user.
• Easy: a simple GET or POST call.
• Complete: support for text, links, and SEPA payment.

👉 Visit https://qr.digital3d.com/swagger to explore the API in detail and test your own calls.