QR Code Generator API: Integrate Dynamic QR Codes Into Your App (2026 Developer Guide)

Manual QR creation breaks down at scale. When your app, ERP, or marketing automation needs hundreds of unique, branded, trackable QR codes per day, the PixelQR REST API is the production path—create, update, and analyze codes programmatically.

API Capabilities Overview

Create QR codes — URL, vCard, WiFi, custom dynamic destinations
Customize design — colors, patterns, logos, frames, error correction
Update destinations — change redirect URL without regenerating image
Bulk operations — batch create from JSON or CSV payloads

Fetch analytics — scans, geography, devices, time series
Manage campaigns — folders, tags, activation toggles
Download assets — PNG, SVG, PDF at configurable resolution
Webhooks — real-time scan notifications to your endpoint

Authentication

PixelQR API uses Bearer token authentication. Generate API keys from Dashboard → Settings → API (Pro plan required).

# Request header

Authorization: Bearer YOUR_API_KEY

# Base URL

https://api.pixel-qrcode.com/v1

Rotate keys quarterly. Use separate keys for staging and production. Never expose keys in client-side JavaScript.

Core Endpoints

Method	Endpoint	Purpose
POST	/qr-codes	Create new QR code
GET	/qr-codes/:id	Retrieve code details
PATCH	/qr-codes/:id	Update destination or design
DELETE	/qr-codes/:id	Deactivate code
GET	/qr-codes/:id/analytics	Scan metrics
POST	/qr-codes/bulk	Batch create up to 1,000

Full reference: /api-reference

Example: Create a Dynamic URL QR

POST /v1/qr-codes
{
  "name": "Product-SKU-8842",
  "type": "url",
  "destination": "https://shop.example.com/p/8842",
  "isDynamic": true,
  "foreground": "#1a1a2e",
  "background": "#ffffff",
  "pattern": "rounded",
  "size": 1024,
  "errorCorrection": "H"
}

Production Best Practices

Rate Limits & Retries

Pro: 100 req/min. Implement exponential backoff on 429 responses. Cache GET responses for 60 seconds.

Idempotency

Pass Idempotency-Key header on bulk creates to prevent duplicate codes on network retry.

Webhooks

Verify HMAC signatures on scan events. Use webhooks for CRM sync instead of polling analytics.

Error Handling

Log 4xx for bad payloads; alert on 5xx. Store PixelQR qr_id in your database for cross-reference.

Common Integration Patterns

E-commerce: Auto-generate packaging QR per order line item via webhook on fulfillment.
Event platforms: Unique attendee QR badges created on ticket purchase.
CRM: Sales rep business card QR provisioned on new hire onboarding.
IoT / Asset tracking: Equipment label QR linked to maintenance log URL.

Get API Access

Upgrade to Pro for API keys, unlimited dynamic codes, and production-grade rate limits.

Start Creating QR Codes → View API Reference