Excel MCP Cleyrop (MartinCley/Excel-MCP) is an MCP server listed on the M8ven Trust Index. It scores 52 out of 100, grade D. It declares 4 tools. No publisher has claimed this listing.

D
Caution
52/100

Excel MCP Cleyrop

Generates formatted Excel (.xlsx) files from user requests and deposits them into Cleyrop project data.

Caution. Specific findings reduced this grade. They are listed on the page. 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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⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

MartinCley

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

Install from

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.
// 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.
configMCP_TRANSPORTglobale (option) streamable-http
configEXCEL_MCP_DOWNLOAD_DIR
configEXCEL_MCP_DOWNLOAD_TTL
configEXCEL_MCP_PUBLIC_URLpubliquement : renseigne alors .
configMCP_HOSTglobale (option) 0.0.0.0
configMCP_PORT(défaut 8000, endpoint /mcp).
configEXCEL_MCP_DEFAULT_PROJECTdépôt dans un projet : définis (ou
configCLEYROP_PROJECT_SLUG) et le fichier est déposé dans les données de travail,
configEXCEL_MCP_EXPORT_DIR"env": { "": "~/.excel-mcp/exports" }
// 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 — generate_excel (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); cleyrop_list_projects (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); cleyrop_diagnose (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.

Destructive tools are labelled

1 tool perform destructive updates without destructiveHint — generate_excel deletes at line 194 (os.unlink(tmp_path))

Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.

Tool inputs are validated

Only 1/4 tool handlers declare input schemas (25%)

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

Tool handlers catch errors

3/4 tool handlers wrap calls in try/catch (75%)

Wrap each tool handler body in try/catch and return a structured error response.

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 7 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 Verified](https://m8ven.ai/badge/mcp/martincley/excel-mcp?variant=verified)](https://m8ven.ai/mcp/martincley/excel-mcp)
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commit: c6d58d248f6e315a83e75e667034af8b43b82c7d
code hash: f8e334b6f653d685ecf3d050f38eb77f49001fe21bfeb9d33952c2c65d781531
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