Barcode — DoAThing.com

Barcode

EAN-13, UPC-A, Code128 and the rest, with the check digit worked out for you.

Make a retail barcode now No key, no code — 2 credits either way.

curl -X POST "$DOATHING_API/v1/codes/barcode-generate" \
  -H "x-api-key: $DOATHING_KEY" \
  -H "content-type: application/json" \
  -d '{"text": "590123412345", "options": {"symbology": "ean13"}}'

EAN-13, UPC-A, Code128 and the rest, with the check digit worked out for you.

Generate EAN-13, EAN-8, UPC-A, Code128, Code39 or ITF barcodes as PNG or SVG with checksum calculation.

Response

The result carries your remaining balance alongside it, so you can track spend without a second call.

{
  "symbology": "ean13",
  "input": "590123412345",
  "full_code": "5901234123457",
  "request_id": "37f01edb-0163-42a1-ac51-0acaef979800",
  "credits_remaining": 96
}

Cost

2 credits per call, whether it is run from the site or from the API — the credential differs, the price does not. A new account starts with 20 credits.

A rejected request still costs a credit: the authorizer decrements before the tool validates. A call rejected for a missing or invalid key is free.

Parameters

Generated from the endpoint’s own validation, so this is exactly what it accepts. A body field goes at the top level; an option goes inside options.

Name	In	Type	Default	Notes
text *	body	string	—
symbology	options	string	"code128"	ean13, ean8, upca, isbn13, code128, code39 or itf. one of ean13, ean8, upca, isbn13, code128, code39, itf
format	options	string	"png"	png or svg. one of png, svg
show_text	options	boolean	true	Print the digits under the bars.
module_width	options	number	0.2
module_height	options	number	15	Bar height in millimetres.
quiet_zone	options	number	6.5