# Zovo Barcode Maker (remote · barcode-maker.zovo.one)

EAN, UPC & Code 128 barcodes

- Trust score: 73/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-22

## Components

- remote · `barcode-maker.zovo.one`: 73/100 (this document), [markdown](https://verifymcp.io/servers/theluckystrike-barcode-maker/barcode-maker.md), [page](https://verifymcp.io/servers/theluckystrike-barcode-maker/barcode-maker)

## Channel facts

- Endpoint: `https://barcode-maker.zovo.one/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-22.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 70/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1307 tokens (~435/item across 3 items; 2 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.
  - Supports UI / widget rendering.

**Unverified: 1 category.** A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### How do I install the Zovo Barcode Maker MCP server?

Zovo Barcode Maker is a hosted endpoint at https://barcode-maker.zovo.one/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http theluckystrike-barcode-maker 'https://barcode-maker.zovo.one/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "theluckystrike-barcode-maker": {
      "url": "https://barcode-maker.zovo.one/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "theluckystrike-barcode-maker": {
      "type": "http",
      "url": "https://barcode-maker.zovo.one/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.theluckystrike-barcode-maker]
url = "https://barcode-maker.zovo.one/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "theluckystrike-barcode-maker": {
      "type": "remote",
      "url": "https://barcode-maker.zovo.one/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add theluckystrike-barcode-maker --url 'https://barcode-maker.zovo.one/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  theluckystrike-barcode-maker:
    url: "https://barcode-maker.zovo.one/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "theluckystrike-barcode-maker": {
      "Transport": "http",
      "Url": "https://barcode-maker.zovo.one/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add theluckystrike-barcode-maker -t streamable-http -u 'https://barcode-maker.zovo.one/mcp'
```

### Other

```json
{
  "mcpServers": {
    "theluckystrike-barcode-maker": {
      "type": "http",
      "url": "https://barcode-maker.zovo.one/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-22 (score 73)

First indexed and scored.

## MCP tools (2)

### `generate_barcode` (~886 tokens)

Generate barcode

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.

Input parameters:

- `add_on` (string): 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).
- `bar_height_mm` (number): 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.
- `code39_check_digit` (boolean): Code 39 only: append the optional modulo-43 check character, e.g. true. Default false.
- `data` (string, required): 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 ASCI…
- `fix_check_digit` (boolean): 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.
- `magnification_percent` (number): 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).
- `printer_dpi` (integer): 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.
- `show_text` (boolean): Print the human-readable digits/text under the bars, e.g. true (default).
- `symbology` (string, required): 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 te…
- `x_dimension_mm` (number): 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).

Output parameters:

- `check`
- `code128`
- `data` (string)
- `downloads` (object)
- `gs1_elements`
- `gs1_notice` (string|null)
- `gs1_prefix`
- `guidance` (array)
- `hri` (string)
- `kind` (string)
- `label` (string)
- `notes` (array)
- `png` (object)
- `related` (object)
- `render`
- `request` (object)
- `size` (object)
- `symbology` (string)
- `warnings` (array)

### `validate_barcode_number` (~304 tokens)

Validate barcode number

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.

Input parameters:

- `number` (string, required): 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. 0360002914…
- `type` (string): 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.

Output parameters:

- `barcode`
- `check_expected` (string)
- `check_given` (string)
- `corrected` (string)
- `equivalents` (object)
- `explanation` (string)
- `gs1_prefix`
- `input` (string)
- `kind` (string)
- `notes` (array)
- `type` (string)
- `type_label` (string)
- `valid` (boolean)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/theluckystrike-barcode-maker/barcode-maker#diagnostics

## Score history

- 2026-10-22: 73

## Common questions

### What is the Zovo Barcode Maker MCP server?

Zovo Barcode Maker is an MCP server listed in the public MCP registry as io.github.theluckystrike/barcode-maker. EAN, UPC & Code 128 barcodes. This page covers its hosted endpoint (https://barcode-maker.zovo.one/mcp).

### Is the Zovo Barcode Maker MCP server safe to use?

Zovo Barcode Maker scores 73 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Zovo Barcode Maker MCP server expose?

Zovo Barcode Maker exposes 2 tools: generate_barcode, validate_barcode_number. Their descriptions and schemas cost roughly 1,190 tokens of context every time the server is loaded.

### Does the Zovo Barcode Maker MCP server require authentication?

No. We connected to Zovo Barcode Maker without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Zovo Barcode Maker MCP server still maintained?

Zovo Barcode Maker is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://barcode-maker.zovo.one/mcp
- Website: https://barcode-maker.zovo.one/
- Changelog RSS feed: https://verifymcp.io/servers/theluckystrike-barcode-maker/barcode-maker.xml
- Changelog JSON feed: https://verifymcp.io/servers/theluckystrike-barcode-maker/barcode-maker.json
- HTML version of this page: https://verifymcp.io/servers/theluckystrike-barcode-maker/barcode-maker