UPC, EAN, Code 128 labels. Make scannable barcodes with correct check digits, and print them on standard label sheets.
https://plugins-worker.demos.42a.ai/barcode/mcpSettings → Security and login → Developer mode → chatgpt.com/plugins → + → paste the URL. After a tool change: Refresh, then a new chat.
| Prompt | Tool | Expected |
|---|---|---|
| Make a UPC-A barcode for 03600029145 | create_barcode | Check digit 2 is added, giving 036000291452; SVG, PNG and an Avery 5160 sheet PDF are offered with the GS1 note. |
| Make a barcode for UPC 036000291453 | create_barcode | Refused with the reason: the check digit should be 2, not 3; offers 036000291452. |
| I need an EAN-13 barcode for 590123412345 without text under it | create_barcode | Check digit 7 added: 5901234123457. |
| Make Code 128 barcode labels on Avery 5160 for my SKUs: TEE-BLK-S, TEE-BLK-M, TEE-BLK-L, TEE-WHT-S, TEE-WHT-M, TEE-WHT-L, HOOD-GRY-M, HOOD-GRY-L, CAP-NVY, CAP-RED, MUG-11OZ, TOTE-NAT | create_barcode | 12 valid Code 128 labels on one Avery 5160 sheet (30 per sheet), with the PDF and a CSV. |
| Carton labels, ITF-14, on 2x4 labels: 1001234567890, 10012345678902, 10012345678909 | create_barcode | Two labels (check digit 2 added to the first; the second verified) and the third refused: its check digit should be 2, not 9. |
| What product is UPC 036000291452 and how much does it cost? | none | A product lookup; this plugin draws barcodes and checks digits, it has no product database. |
| Make a QR code that opens my website | none | A QR code, not a linear or label barcode. |
| How do I get a UPC code for my product to sell on Amazon? | none | Advice about GS1 registration, answered in chat; nothing to generate yet. |