Development — entry 067 of 100
OpenQR
OpenQR is a free, open-source QR-code service with both a REST API and an MCP server for AI agents. Beyond rendering PNG or SVG codes, it creates 'dynamic' codes — short oqr.to links you can repoint at any time so a printed QR never has to change — and returns scan analytics broken down by day, country, device, and referrer. A free key (email magic-link, no password) unlocks the API, with paid plans raising the limits.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsPNG, SVG, JSONResponses can be requested as PNG or SVG or JSON.
GreatAPIs Score
Score81
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats15/15Supports 3 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/openqr/"><img src="https://greatapis.com/badge/openqr.svg" alt="Scored 81 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.