openscad-mcp (petrijr/openscad-mcp) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.

Back to MCP Trust Indexm8ven
C
Emerging
74/100
10 days ago

openscad-mcp

Exposes OpenSCAD CLI as MCP tools for validating, rendering, and exporting parametric 3D models. Enables LLM clients to interactively create and manipulate OpenSCAD designs.

→ petrijr/openscad-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.

How we verified

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Who stands behind it

petrijr

Source: Glama

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Install from

Glama

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// 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.
configOPENSCAD_MCP_KEEP_ARTIFACTSIf your MCP client can read local paths, set =true (and optionally
configOPENSCAD_MCP_MODULE_ROOTlist_modules / render_module: render from a simple module registry ()
configOPENSCAD_MCP_ARTIFACT_ROOT) so returned artifact.path values remain valid after the tool returns.
configOPENSCAD_MCP_MAX_OUTPUT_BYTESIf you need to enforce output size limits, set .
configOPENSCAD_MCP_MAX_INLINE_BYTESmax bytes to inline when inline_artifact_bytes=true (default 5 MB)
configOPENSCAD_MCP_MAX_INTROSPECT_BYTESmax bytes to read for introspection (default 2 MB)
configOPENSCAD_MCP_QT_QPA_PLATFORMQt platform plugin for headless fallback (default minimal)
configOPENSCAD_MCP_OPENSCAD_PATHOpenSCAD installed and openscad available on your PATH (or set )
configOPENSCAD_MCP_TIMEOUT_SOpenSCAD subprocess timeout in seconds (default 30)
configOPENSCAD_MCP_INCLUDE_ROOTScomma-separated allowlist for use/include (best-effort enforcement)
configOPENSCAD_MCP_CACHE_ROOTuse_cache: content-addressed cache (requires )
configOPENSCAD_MCP_LOG_LEVELlog level (default INFO)
// 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

10/10 tools missing one or more hints — list_formats (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); validate_scad (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_templates (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +7 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/petrijr-openscad-mcp-wgnjcz)](https://m8ven.ai/mcp/petrijr-openscad-mcp-wgnjcz)
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commit: ffd0dbc8319e150dc033f7a35827ab1091fde68a
code hash: d8bcaabbdde3aef92793e2f82c53a3e7e3f6c7c0125a445577e384526a3013d7
verified: 8/19/2026, 4:04:59 AM
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