Changing invoices. Changing payments.
by square encodes financial and accounting data, saving time and money for busy teams. The payload is represented in two related QR codes that work together across billing and accounting systems.
Install an e-commerce plugin or integrate the API
Use PAY by square plugins for WooCommerce, Magento, and more - or call the REST API directly.
Link your by square account
Connect plugins or custom integrations to your by square workspace with API keys.
Check usage anytime
Track every request and invoice decode directly in the platform dashboard.
Web Service
Integrate the by square standard using existing e-commerce plugins or by calling our REST API. Generate QR code images, decode invoices you already issue, and check usage inside the platform anytime.
Keep every channel aligned with the by square specification.
Connect invoicing, ERP, or e-commerce platforms using our existing plugins or straight HTTP calls.
Responses include image assets and payloads for immediate use.
Use simple HTTP requests to receive ready-to-use QR code images for invoices and payments.
Usage dashboards surface history, limits, and alerts on demand.
Read existing invoices and monitor call volumes directly in the platform whenever you need.
Supported formats
QR payments optimized for Slovak banking apps.
Machine-readable invoices that speed up processing.
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SEPA QR payment format used in Czechia.
Trusted across Slovak banking
Slovak Banking AssociationPAY by square has become the standard for encoding of payment information into QR codes in Slovakia.
Slovak Chamber of Certified AccountantsINVOICE by square is supported by leading body for professional accountants SKCÚ as an innovative solution for invoice processing automation.