Gookit Label API
Generate product and inventory labels from JSON in your SaaS, ERP or internal tool.
$29 USD / month. Eligible new accounts get 2,000 labels once. Pricing and limits →
Start with the right account
Use an independent developer account. Create a key, save a template, and send your product data. No commerce platform is required.
Get a developer API key →On Shopify, start in BarcodeMan → Settings → Open API. Merchant and developer keys use separate access paths. Check the FAQ for your store’s next step.
Find your BarcodeMan API access →{
"templateId": "LOCAL_DEMO_TEMPLATE_ID",
"items": [{ "quantity": 24,
"data": {
"name": "Trail Bottle",
"price": "$24.00",
"sku": "TB-1042",
"ean": "5901234123457"
} }]
} {
"templateId": "LOCAL_DEMO_TEMPLATE_ID",
"items": [
{
"quantity": 24,
"data": {
"name": "Trail Bottle",
"sku": "TB-1042",
"price": "$24.00",
"ean": "5901234123457"
}
}
]
} 
Gookit Gookit 
The same Trail Bottle data from the demo, rendered as 24 labels at 50 × 30 mm.
Generated by the API’s label renderer. Print at 100% / Actual Size.
Product and inventory labels for your workflows. Postage and carrier shipping labels are not included.
Print labels from item, lot, bin and supplier data in your ERP or WMS.
Keep your workflow. We handle label layout, barcodes and PDF pagination.
Reuse templates with each customer’s branding and product data.
Set your label size, place text and barcodes, then bind them to your JSON fields.
Read the quickstart ↗
Choose a paper preset or custom label size.
Save your layout and copy its template ID.
Send templateId with your product or inventory data.
Poll background PDF jobs for status and a download URL.
POST a template ID plus the records and quantities to print.
Status moves from pending to processing, then completed or failed.
Download URLs typically last about 24 hours.
curl https://label-api.gookit.co/api/v1/print/JOB_ID \
-H "Authorization: Bearer $KEY"
# 200 OK
{
"jobId": "8fd9e2c1-7a4b-4c6d-91f0-15e8f4e12b7c",
"status": "completed",
"url": "https://example.com/labels/8fd9e2c1.pdf",
"createdAt": "2026-01-15T04:31:20.000Z",
"completedAt": "2026-01-15T04:31:28.000Z"
}Up to 1,000 labels per job, with quantities for each record.
A single label returned synchronously for on-screen previews.
Code 128, Code 39, EAN-13, QR codes and more.
Set dimensions to match your label stock.
Product names, SKUs, prices, lot numbers and custom data.
Download a PDF for your viewer and configured printer driver. Test your stock and settings.
Tutorials for batch jobs, templates, spreadsheets, automation tools and error handling.
Gookit Label API pricing
$29 USD / month. Unlimited monthly output, with clear job and rate limits.
Yes. Shopify merchants start in BarcodeMan → Settings → Open API. Independent developers use a Gookit developer account. Merchant and developer keys belong to separate access paths; confirm the available path for other BarcodeMan platforms with support.
No. Gookit Label API is for product and inventory labels: SKUs, prices, barcodes, QR codes, lot numbers, bin locations, and other data from your system. It does not buy postage or create carrier shipping labels.
No. The API is platform-agnostic. If your application can send an HTTPS request with JSON, it can generate labels with Gookit Label API.
Yes. Create and save a reusable template first, then send its templateId with each print request. The visual editor can start from a paper preset and a designed layout.
Gookit Label API supports common product and inventory formats including Code 128, Code 39, EAN-13, EAN-8, UPC-A, UPC-E, GS1-128, ISBN, and QR codes.
The API returns PDF files for your existing print workflow. Match the template dimensions to your stock, print at Actual Size, and test the output with your printer and scanner before increasing volume.
Eligible new accounts receive 2,000 production labels once.