QR Code API Quick Start
Generate QR codes programmatically with the QR Code Genius REST API — create your API key and make your first request in minutes.
API Authentication
How QR Code Genius API keys work and how to authenticate your requests securely.
Bulk QR Generation (POST /qr/bulk)
Generate up to 100 QR codes in one API call, save them to a folder, and make them dynamic and trackable — reference and examples.
Embed a QR Image (GET /render)
The fastest way to show a QR code — a cacheable PNG endpoint you can drop straight into an img tag, with size and color parameters.
API Errors and Rate Limits
How QR Code Genius API quotas, credits, and error responses work — status codes, monthly limits, and how to handle 429s.
Generate a QR Code (POST /qr)
Full reference for the QR Code Genius single-generation endpoint — request fields, styling options, and response format with examples.
QR Styling Options Reference
Every design field accepted by the QR Code Genius API — dot shapes, corner styles, gradients, logos, and error correction levels.