QR.

什么是 QR.？

QR. is the developer API for dynamic QR codes. Mint over HTTP, export PNG/SVG/PDF, ship a short link on go.qrdot.dev — then change the destination anytime without reprinting. Full workflow, not just a PNG tool: mint → print → live link → route (device, geo, time, password gate, A/B) → observe (analytics + webhooks). Free tier includes the API. Docs & SDKs at qrdot.dev.