QR Code API for Apps, Automation & Dynamic Workflows

API examples

Copy-ready examples for common QR Code API responses

Start with JSON while integrating, then switch to a file response when your workflow needs a downloadable QR image or PDF.

cURL: JSON response with base64 QR

curl -X POST https://qr-code-lab.com/api/qr/api/generate \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
    "data": "https://example.com",
    "save": false,
    "response": "json",
    "size": 800,
    "file": "png",
    "config": {
      "body": "dots",
      "eye": "frame-rounded",
      "eyeBall": "ball-circle",
      "bodyColor": "#111111",
      "bgColor": "#ffffff"
    }
  }'

cURL: binary PNG download

curl -X POST https://qr-code-lab.com/api/qr/api/generate \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  --output qr-code.png \
  -d '{
    "data": "https://example.com",
    "save": true,
    "response": "file",
    "download": true,
    "size": 1000,
    "file": "png"
  }'

Node.js fetch

const response = await fetch("https://qr-code-lab.com/api/qr/api/generate", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "x-api-key": "YOUR_API_KEY"
  },
  body: JSON.stringify({
    data: "https://example.com",
    save: true,
    response: "json",
    size: 800,
    file: "png",
    config: {
      body: "rounded",
      bodyColor: "#111111",
      bgColor: "#ffffff",
      logoSize: 0.2
    }
  })
});

const result = await response.json();
console.log(result.qr || result.dataUrl);

Python requests

import requests

response = requests.post(
    "https://qr-code-lab.com/api/qr/api/generate",
    headers={
        "Content-Type": "application/json",
        "x-api-key": "YOUR_API_KEY",
    },
    json={
        "data": "https://example.com",
        "save": True,
        "response": "json",
        "size": 800,
        "file": "png",
        "config": {
            "body": "dots",
            "bodyColor": "#111111",
            "bgColor": "#ffffff",
        },
    },
)

print(response.json())