A
licenseNot graded
qualityC
maintenanceEnables encoding 100+ barcode symbologies and decoding common 1D/2D formats, plus terminal QR codes.
1
MIT
Zovo Barcode Maker
Server Details
EAN, UPC & Code 128 barcodes
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- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
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Available Tools
2 toolsgenerate_barcodeGenerate barcodeRead-onlyIdempotentInspect
Use this when the user wants a barcode generator: a UPC or EAN-13 barcode for a product, a Code 128 barcode for a SKU or label, GS1-128 with (01) GTIN, (17) expiry and (10) lot, Code 39, an ITF-14 carton code, or a book ISBN barcode. Computes or verifies the check digit (explains a wrong one), applies GS1 quiet zones and sizes, and returns SVG and PNG download links plus calculated print dimensions. One barcode per request; Code 128 up to 80 characters, Code 39 up to 60 characters, and GS1-128 up to 48 data characters including separator FNC1 characters. Does not issue or register GS1 numbers (real UPC/EAN numbers must be licensed from GS1), does not scan images or look up products. Do not use for QR codes.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| data | Yes | What to encode, e.g. 590123412345 (the check digit is added if missing; spaces, hyphens and a leading spreadsheet apostrophe are ignored in numbers), A-10442 for Code 128 (encoded exactly, plain ASCII), (01)09501101530003(17)261231(10)LOT42 for GS1-128 (parentheses recommended; unbracketed AI strings are also read), 0-306-40615-2 for ISBN. | |
| add_on | No | Optional 2- or 5-digit add-on printed to the right of an EAN-13, UPC-A, UPC-E, EAN-8, ISBN or ISSN barcode, e.g. 51299 (book price code for 12.99 USD) or 07 (magazine issue). | |
| show_text | No | Print the human-readable digits/text under the bars, e.g. true (default). | |
| symbology | Yes | Barcode type, e.g. ean13. ean13 (EAN-13 retail, 12 or 13 digits), ean8 (7 or 8 digits), upca (UPC-A, 11 or 12 digits), upce (UPC-E: 6-8 digits, or a 12-digit UPC-A to compress), code128 (any ASCII text such as SKUs; automatic code set A/B/C switching), gs1_128 (GS1-128 with Application Identifiers), code39 (A-Z, 0-9, - . space $ / + %), itf14 (GTIN-14 carton code with bearer bars, 13 or 14 digits), isbn (book barcode from an ISBN-10 or ISBN-13), issn (magazine barcode from an ISSN). | |
| printer_dpi | No | Resolution of the label printer, e.g. 203 or 300. Bar widths are snapped to whole printer dots so every bar prints exactly; the PNG is rendered at this resolution. | |
| bar_height_mm | No | Bar height in millimetres, e.g. 15. Defaults to the GS1 height for retail codes, 31.75 mm for ITF-14 and GS1-128, else the larger of 12.7 mm and 15% of the symbol length. | |
| x_dimension_mm | No | Width of the narrowest bar in millimetres, e.g. 0.33. Overrides magnification. Defaults: 0.33 (EAN/UPC, Code 128, Code 39), 0.495 (GS1-128), 0.635 (ITF-14). | |
| fix_check_digit | No | If the number already has a check digit and it is wrong, replace it with the correct one instead of returning an error, e.g. true. Default false. | |
| code39_check_digit | No | Code 39 only: append the optional modulo-43 check character, e.g. true. Default false. | |
| magnification_percent | No | EAN/UPC/ISBN/ISSN and ITF-14 size as a percentage of the GS1 nominal size, e.g. 100 (EAN-13 = 37.29 x 25.93 mm; GS1 retail range 80-200). |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| hri | Yes | |
| png | Yes | |
| data | Yes | |
| kind | Yes | |
| size | Yes | |
| check | Yes | |
| label | Yes | |
| notes | Yes | |
| render | Yes | |
| code128 | No | |
| related | Yes | |
| request | Yes | |
| guidance | Yes | |
| warnings | Yes | |
| downloads | Yes | |
| symbology | Yes | |
| gs1_notice | Yes | |
| gs1_prefix | Yes | |
| gs1_elements | No |
validate_barcode_numberValidate barcode numberRead-onlyIdempotentInspect
Use this when the user asks whether a UPC, EAN, GTIN-8/12/13/14, SSCC, ISBN-10/13 or ISSN number is valid, what its check digit should be, or wants to convert ISBN-10 to ISBN-13, UPC-E to UPC-A, or UPC-A to EAN-13/GTIN-14. Explains the check-digit arithmetic, gives the corrected number and the GS1 prefix meaning. Does not tell who owns a number, whether it is registered with GS1, or what product it is; does not look anything up online.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| type | No | Number type, e.g. auto (default: detected from the length). gtin8, gtin12 (UPC-A), gtin13 (EAN-13), gtin14, sscc, upce, isbn10, isbn13, issn. Use upce or issn for 8-digit numbers that are not EAN-8. | |
| number | Yes | The number to check, e.g. 5901234123457, 036000291452, 0-306-40615-2 (ISBN-10), 0317-8471 (ISSN) or 106141412345678908 (SSCC). Spaces and hyphens are ignored. Without its check digit (e.g. 03600029145) the check digit is computed. |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| kind | Yes | |
| type | Yes | |
| input | Yes | |
| notes | Yes | |
| valid | Yes | |
| barcode | Yes | |
| corrected | Yes | |
| gs1_prefix | Yes | |
| type_label | Yes | |
| check_given | Yes | |
| equivalents | Yes | |
| explanation | Yes | |
| check_expected | Yes |
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
2 tool updates
- First observed
generate_barcode - First observed
validate_barcode_number
Related MCP Connectors
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Related MCP Servers
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- AlicenseNot gradedqualityBmaintenanceProvides GTIN barcode validation and check digit computation for EAN-13, UPC-A, EAN-8, and GTIN-14 formats as an MCP server, part of the Pipeworx gateway.13 npmMIT
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