Guides

Step-by-step guides for common tasks with the SGPayNowQR API.

• Choosing a Payment Type: UEN vs Mobile vs VPA

  When to use UEN, mobile number, or VPA when generating a Singapore PayNow QR code, with a complete request example for each.

• Handling Errors and Rate Limits

  Every SGPayNowQR error code, recommended retry/backoff handling, and how to read the X-RateLimit-* response headers.

• TypeScript SDK Quickstart

  Install the @alexhalfborg/sgpaynowqr SDK and generate your first PayNow QR code end to end with createClient.

• Connect SGPayNowQR to Claude, ChatGPT, Cursor & VS Code (MCP)

  Step-by-step setup for Claude Code, Claude, ChatGPT, Cursor, VS Code, Windsurf, Codex and Gemini CLI, so your AI assistant can generate PayNow QR codes with the generate_qr tool.

• Generate PayNow QR Codes in n8n

  Use the SGPayNowQR community node, the HTTP Request node, or the MCP Client Tool to generate Singapore PayNow QR codes in n8n workflows and AI agents.