freecad-mcp (blwfish/freecad-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 38 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100

freecad-mcp

MCP server to control FreeCAD from Claude — parametric modeling, sketches, CAM toolpaths, geometry inspection, and more via 33 tools.

→ blwfish/freecad-mcp· 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.

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Who stands behind it

blwfish

Source: Glama

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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.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// 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.
configFREECAD_MCP_SOCKETpath> — override the socket path entirely (escape hatch for CI / tightly-scripted launches)
configFREECAD_MCP_FREECAD_BIN
configFREECAD_MCP_FREECAD_GUI_BIN
configFREECAD_MCP_MODULE_DIR
configFREECAD_MCP_PORT
configFREECAD_MCP_CAPTURE_STATE_PER_COMMAND
configFREECAD_MCP_LABELname> — give the instance a human-readable name (defaults to the UUID otherwise)
configXDG_DATA_HOME
configFREECAD_MCP_TEST_MODE
configFREECAD_INSPECTOR_PATH
configFREECAD_MCP_FEEDBACK_FILE
// quality suggestions

Tool annotations

25/38 tools have annotations

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

All four hints declared on every tool

38/38 tools missing one or more hints — check_freecad_connection (missing: openWorldHint); test_echo (missing: openWorldHint); restart_freecad (missing: idempotentHint, openWorldHint), +35 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.

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 2 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/blwfish/freecad-mcp)](https://m8ven.ai/mcp/blwfish/freecad-mcp)
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commit: 30905aae868439dfc1f45c551e54f4b9882d3717
code hash: 8f9c35efcda5c5d1ed6216c59e3f508443e5bc37d1c512f596d4584b0c7c3f4e
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