vCard QR Code for Website API
Generate vcard qr code for websites and web platforms with a single API call. ChartQuery renders publication-ready images, PNG or SVG, that you can embed in dashboards, emails, reports, or print directly. No chart library to install, no frontend code to write.
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.
Website Use Cases
- Track traffic and conversion metrics
- Generate sitemap and architecture diagrams
- Visualize page performance data
- Chart SEO ranking trends
Frequently Asked Questions
What is a vCard QR Code API for Website?
A vCard QR Code API for websites and web platforms lets you generate vcard qr code images programmatically via HTTP requests. ChartQuery renders publication-ready PNG or SVG output that you can embed in dashboards, emails, reports, or print, without installing any chart library or writing frontend code.
How do I generate a vcard qr code for website 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).
What are common vcard qr code use cases in website?
Track traffic and conversion metrics. Generate sitemap and architecture diagrams. Visualize page performance data. Chart SEO ranking trends. ChartQuery handles the rendering so you can focus on your data and business logic.
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.
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No API key required to get started. Generate charts, diagrams, and more with a single HTTP request.
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