PayBySquare Generator

About

This comprehensive Node.js and TypeScript library provides robust functionality for interacting with PayBySquare QR codes, the national standard for payment QR codes in Slovakia. It allows developers to easily generate these standardized QR codes as PNG images from structured payment data, decode existing QR codes back into comprehensive payment information, and perform rigorous validation against banking standards, including IBAN checksums and field formats. The library ensures compliance, offers detailed reporting on potential issues, and includes an MCP server to expose its capabilities to AI clients like Claude, facilitating modern payment integrations.

Key Features

• Generate customizable PayBySquare QR codes as PNG buffers or files from JSON-based payment data.
• Full TypeScript support with type definitions and an included MCP Server for AI integration with Claude and other clients.
• Comprehensive compliance checks and validation against Slovak banking standards (IBAN, BIC/SWIFT, currency codes).
• Detailed compliance reports with error severity levels and round-trip verification for data integrity.
• Decode PayBySquare QR codes from PNG images to extract payment data back into JSON format.
• 1 GitHub stars

Use Cases

• Ensuring data integrity and compliance for payment information before transaction processing.
• Generating payment QR codes for invoices, e-commerce platforms, or billing systems.
• Integrating with financial applications to decode and process incoming PayBySquare payments.