Create vCard QR Code API
Generate vcard qr code images with a single HTTP request. ChartQuery returns publication-ready PNG or SVG output that works everywhere, dashboards, emails, PDFs, print, and more. No frontend library required.
Live Preview
This image is generated in real time by the ChartQuery API, no static assets.
Quick Start
A single HTTP request is all you need. No SDK, no dependencies.
curl -X POST https://api.chartquery.com/v1/qrcode \
-H "Content-Type: application/json" \
-d '{
"data": "BEGIN:VCARD\\nVERSION:3.0\\nFN:John Doe\\nTEL:+1234567890\\nEND:VCARD",
"size": 300,
"dot_type": "rounded",
"ec_level": "H",
"color": "#6366f1"
}' \
--output qrcode.svgHow It Works
Send a Request
POST a JSON body or use GET with query parameters. No SDK or library needed.
Get Your Image
ChartQuery renders your chart, diagram, barcode, QR code, or label and returns it as PNG or SVG.
Use It Anywhere
Embed in emails, PDFs, dashboards, documents, or print directly. Works everywhere images work.
Features
11 Dot Styles
Square, rounded, dots, diamond, classy, and more, create QR codes that match your brand identity.
Color Gradients
Linear and radial gradients for modules and background. Full corner customization with per-finder styling.
Any Data Type
URLs, WiFi credentials, vCards, emails, SMS, phone numbers, locations, events, and plain text.
High Error Correction
Four EC levels (L/M/Q/H) supporting up to 30% damage tolerance. Perfect for printed materials.
Use Cases
- Contactless menus and digital payments
- Marketing campaigns and print materials
- WiFi access and guest onboarding
- Event tickets and check-in systems
Frequently Asked Questions
What is the ChartQuery vCard QR Code API?
The ChartQuery vCard QR Code API lets you generate vcard qr code images via a simple HTTP request. Send a JSON configuration and receive a rendered PNG or SVG image in the response. No frontend library, no browser, no dependencies required.
How do I create a vcard qr code with an API?
Send a POST request to the ChartQuery qrcode endpoint with your data as JSON. The API returns a rendered image directly. You can also use GET requests with URL parameters for simple cases. No API key is required for basic usage, anonymous access is available with 60 requests per hour.
What output formats does the vCard QR Code API support?
SVG (default) and PNG. SVG is recommended for web and print, PNG for email and messaging.
Is the vCard QR Code API free to use?
Yes. The ChartQuery vCard QR Code API works without an API key. Anonymous access is rate-limited to 60 requests per hour and adds a small watermark. Authenticated users on paid plans get higher limits, no watermark, and longer chart persistence (6 months vs 3 days for shared URLs).
Can I customize the vcard qr code appearance?
Yes. You have full control over colors, fonts, sizes, backgrounds, legends, and every visual property through the JSON configuration. The API uses Chart.js v4 for charts, and supports all native options for fine-grained customization.
Can I share and embed qr codes generated by the API?
Yes. Add "share": true to any request to get permanent URLs. The render_url is a direct image URL you can embed in emails, documents, or <img> tags. The view_url is an interactive HTML page you can embed as an iframe. No authentication needed for viewers.
Related APIs
Start generating charts today
No API key required to get started. Generate charts, diagrams, and more with a single HTTP request.
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