Free QR code API | INBIO Docs

Everything the QR code generator does, as one GET request. No account, no API key — the URL is the image, so you can drop it straight into an <img> tag, a README, or an email signature.

GET https://in.bio/api/qr

Request

The response is the raw image, so a request is just a URL with query parameters. type chooses what the code encodes; the style parameters control how it looks.

Payload

type selects the payload; each type reads its own fields from the query string (the same fields as the generator UI).

`type`	Fields
`url` (default)	`url`
`text`	`text`
`email`	`to`, `subject`, `body`
`phone`	`phone`
`sms`	`phone`, `body`
`whatsapp`	`phone`, `text`
`wifi`	`ssid`, `password`, `encryption` (`WPA` / `WEP` / `nopass`)
`vcard`	`name`, `org`, `title`, `phone`, `email`, `url`
`crypto`	`coin` (e.g. `bitcoin`, `ethereum`), `address`, `amount`

Style

Param	Values	Default
`format`	`png`, `svg`	`png`
`size`	`64`–`2048` (px)	`512`
`dot_style`	`square`, `dots`, `rounded`	`square`
`marker_shape`	`square`, `rounded`, `circle`	`square`
`marker_center`	`square`, `dot`	`square`
`foreground`	6-digit hex, `#` optional	`000000`
`marker_color`	6-digit hex, `#` optional	foreground
`transparent`	`1` for a transparent background	`0`
`download`	`1` to force a file download	`0`

<img
  src="https://in.bio/api/qr?url=https://example.com&dot_style=dots&marker_shape=circle&foreground=1a56db"
  alt="QR code"
  width="256"
/>

# Wi-Fi QR code, SVG, rounded dots
curl -o wifi.svg \
  "https://in.bio/api/qr?type=wifi&ssid=MyNetwork&password=secret123&format=svg&dot_style=rounded"

# vCard contact, transparent PNG at 1024px
curl -o card.png \
  "https://in.bio/api/qr?type=vcard&name=Ada%20Lovelace&org=INBIO&size=1024&transparent=1"

const params = new URLSearchParams({
  url: "https://example.com",
  dot_style: "dots",
  marker_shape: "circle",
  foreground: "1a56db",
});

const res = await fetch(`https://in.bio/api/qr?${params}`);
const blob = await res.blob(); // image/png

Response

200 OK with the raw image bytes — no JSON wrapper.

Header	Value
`Content-Type`	`image/png`, or `image/svg+xml` when `format=svg`
`Content-Disposition`	`inline` by default; `attachment` when `download=1`
`Cache-Control`	`public, max-age=86400` (cached for a day)

Errors

Status	When
`422 Unprocessable Entity`	A style or payload field is invalid — standard JSON validation errors naming the field.
`429 Too Many Requests`	Rate limit reached (30 requests/minute per IP).

Want scan tracking?

A QR code from this endpoint encodes your URL directly, so scans go straight to the destination — untracked. To count scans, shorten the link first (also free and keyless) and generate the QR code for the short URL, or create the link from a free account where every link’s QR code and scan analytics live together.