gs1br (vertexdevs-hq/mcp-gs1br) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 4 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100

gs1br

Enables querying authoritative product data from GS1 Brasil's Verified by GS1 API via GTIN, including brand, description, classifications, images, weights, dimensions, and licensee details, with support for national and international bases and batch enrichment.

→ vertexdevs-hq/mcp-gs1br· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

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Who stands behind it

vertexdevs-hq

Source: Glama

Is this your MCP?

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
🔐
You'll be asked for 2 credentials: GS1BR_CLIENT_SECRET, GS1BR_PASSWORD
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configGS1BR_CLIENT_IDClient ID recebido da GS1 Brasil
🔐 secretGS1BR_CLIENT_SECRETClient Secret recebido da GS1 Brasil
configGS1BR_ENVproduction (padrão) ou homologacao
🔐 secretGS1BR_PASSWORDSenha do mesmo usuário
configGS1BR_USERNAMEE-mail do usuário CNP / Verified by GS1
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

4/4 tools missing one or more hints — gs1_validate_check_digit (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); gs1_verify_gtin (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); gs1_verify_gtin_raw (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

2/4 tool handlers declare input schemas (50%)

Declare an inputSchema with zod/joi/yup on every tool definition.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tests exist

No test files found

Add tests that exercise each declared tool.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/vertexdevs-hq/mcp-gs1br)](https://m8ven.ai/mcp/vertexdevs-hq/mcp-gs1br)
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commit: dabbf32485a669f0d491df024288d3ee3ab94b4b
code hash: 9405a08db6b2a6bca6293eee87e4c61088baa33de8888dddd0e4576d5f2cffc8
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