QR Code for Plumbing API
Generate qr codes for plumbing contractors and services 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": "https://www.example.com",
"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.
Plumbing Use Cases
- Track service calls and completion rates
- Generate QR codes for booking
- Print job ticket labels
- Visualize revenue by service type
Frequently Asked Questions
What is a QR Code API for Plumbing?
A QR Code API for plumbing contractors and services lets you generate 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 qr code for plumbing 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 QR Code API support?
SVG (default) and PNG. SVG is recommended for web and print, PNG for email and messaging.
Is the QR Code API free to use?
Yes. The ChartQuery 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 qr code use cases in plumbing?
Track service calls and completion rates. Generate QR codes for booking. Print job ticket labels. Visualize revenue by service type. 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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