APIstax

PAY by square QR Code

PAY by square is the standardized QR code payment solution developed by the Slovak Banking Association, designed to streamline and secure bank transfers. By encoding all essential payment details, such as IBAN, amount, currency, and references into a single, scannable QR code, it eliminates manual entry errors and speeds up transactions.

Perfect for invoices, retail, donations, and e-commerce in Slovakia and the Czech Republic.

It's that easy!

curl -X POST https://api.apistax.io/v1/pay-by-square-qr-code \
    -o 'qr-code.png' \
    -H 'Authorization: Bearer API_KEY_HERE' \
    -H 'Content-Type: application/json' \
    -d '{
          "payments": [
            {
              "type": "PAYMENT_ORDER",
              "accounts": [
                {
                  "iban": "CZ14 2700 0000 0000 0033 3999"
                }
              ],
              "recipient": {
                "name": "Czech Red Cross Humanity Fund"
              }
            }
          ]
        }'

Documentation

What is APIstax?

APIstax is a collection of REST endpoints to process day-to-day tasks. It comes with a handy dashboard to manage your API keys and a full featured documentation.

Developed and hosted in Austria

Privacy by design: No data is stored

Why APIstax?

APIstax was developed to handle the mundane tasks that come with every SaaS project. It is a collection of secure and reliable APIs for your common business needs.

GDPR compliant

Operated in the European Union

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a try!

For whom?

APIstax is for developers!

It is supposed to be the only SDK you need to process your recurring tasks efficiently and quickly. Integrate it in your new or existing SaaS project and start building the fancy stuff!

And your manager will love the benefit of lowering the development costs!

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APIstax Dashboard

One dashboard to complete all tasks. View your used quota and available credits. Manage your API keys and subscription.

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APIs

Endpoints

APIstax provides a bunch of drop-in and ready-to-use APIs. All available REST endpoints are working with commonly known HTTP methods and JSON.

But there is more to come: We are working continuously on developing more APIs. Usable immediately after release with your subscription at no extra charge.

HTML to PDF

Generate PDF files using HTML content as request payload.

EPC QR Code

Generate EPC QR Codes to use it on your invoices and payment requests.

Swiss QR Invoice

Generate Swiss QR bills to use it on your invoice documents.

Invoice PDF

Create beautiful PDF invoices just from JSON data with valid e-invoice data included

VAT Verification

Validate VAT numbers for EU countries, Switzerland, Norway, Iceland and United Kingdom.

Indexes

List various, always up-to-date indexes like consumer price index for many countries.