Zovo Barcode Maker
REMOTE · BARCODE-MAKER.ZOVO.ONE
EAN, UPC & Code 128 barcodes
Available components
Last scanned (1 day ago)
Scores higher than 64% of remote servers
Reachable. Last reached 22 Oct 2026.
Category E-commerce
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability70
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
- Supports UI / widget rendering.Pass
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.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 22 Oct 26 73
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 22 Oct 2026 · Probed https://barcode-maker.zovo.one/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=zovo.one | CN=WE1,O=Google Trust Services,C=US | 2 Oct 2026 | 31 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 8d335e9cc9829d100ed2e9775e2476f7 |
| SANs: zovo.one, barcode-maker.zovo.one, *.barcode-maker.zovo.one | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of barcode-maker.zovo.one. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| one. | present | 64939 | 8 | Verified |
| zovo.one. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=15552000; includeSubDomains; preload |
| x-content-type-options | nosniff |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://barcode-maker.zovo.one/mcp | Verified | 200 | |
| http (plaintext) | http://barcode-maker.zovo.one/mcp | HTTPS enforced | 301 | https://barcode-maker.zovo.one/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
generate_barcode Generate barcode ~886
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | 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 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 | 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 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). |
| Name | Type | Req | Description |
|---|---|---|---|
| check | – | yes | – |
| code128 | – | – | – |
| data | string | yes | – |
| downloads | object | yes | – |
| gs1_elements | – | – | – |
| gs1_notice | string|null | yes | – |
| gs1_prefix | – | yes | – |
| guidance | array | yes | – |
| hri | string | yes | – |
| kind | string | yes | – |
| label | string | yes | – |
| notes | array | yes | – |
| png | object | yes | – |
| related | object | yes | – |
| render | – | yes | – |
| request | object | yes | – |
| size | object | yes | – |
| symbology | string | yes | – |
| warnings | array | yes | – |
No examples provided.
validate_barcode_number Validate barcode number ~304
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.
| Name | Type | Req | Description |
|---|---|---|---|
| number | string | 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. 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. |
| Name | Type | Req | Description |
|---|---|---|---|
| barcode | – | yes | – |
| check_expected | string | yes | – |
| check_given | string | yes | – |
| corrected | string | yes | – |
| equivalents | object | yes | – |
| explanation | string | yes | – |
| gs1_prefix | – | yes | – |
| input | string | yes | – |
| kind | string | yes | – |
| notes | array | yes | – |
| type | string | yes | – |
| type_label | string | yes | – |
| valid | boolean | yes | – |
No examples provided.
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.
remote · barcode-maker.zovo.one
claude mcp add --transport http theluckystrike-barcode-maker 'https://barcode-maker.zovo.one/mcp'
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.