{"service":"fak-qr","ok":true,"policy":"HTTPS origin only (or no Origin/Referer)","endpoints":{"generate":"GET  /qr?data=<text>&ec=M&size=256&margin=2&fg=%23000000&bg=%23ffffff","generatePost":"POST /qr  (Content-Type: application/json, same params)"},"formats":["svg (default)","json (returns metadata + svg)"],"limits":{"maxDataBytes":4096,"sizePx":"64..2048","margin":"0..10"}}