OpenSCAD
NPM · OPENSCAD-MCP-SERVER
Render STL and PNG from OpenSCAD code.
Available components
Last scanned (2 hours ago)
Scores higher than 95% of npm servers
Category Design and Media
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security88
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known medium-severity CVE affects @hono/node-server 1.19.18, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 32 of 110 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to fboldo/openscad-mcp-server). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 41 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 248 tokens (~124/item across 2 items; 2 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
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 2 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
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.
- 1 Nov 26 +1
- Stability: 0.97 → pass security
- 30 Oct 26 −1
- Stability: pass → 0.93 functional
- 29 Oct 26 −3
- CVE-2026-118663 affects this package: medium ▼ security
- Known CVEs: pass → fail ▼ security
- 22 Oct 26 +1
- Stability: 0.97 → pass security
- 21 Oct 26 −1
- Stability: pass → 0.97 functional
- 17 Oct 26 +3
- Stability: 0.80 → pass security
- 16 Oct 26 −3
- Stability: pass → 0.80 functional
- 15 Oct 26 +1
- Stability: 0.97 → pass security
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 5 Nov 2026 · Analysed npm/openscad-mcp-server@1.0.6
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | fboldo/openscad-mcp-server |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/fboldo/openscad-mcp-server/.github/workflows/publish.yml@refs/tags/1.0.6 |
| Rekor log index | 2945400168 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:8849c9e7a75a092ef13a2273ce52b28455719e0c199d38be883650f8ad83f53625f3e66f18762241534af49574e6d92a5ba5e482ca55742e6ada0771b |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-rmxm-3fg6-px4f | CVE-2026-118663 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 110 packages
| Packages resolved | 110 |
|---|---|
| Stale | 31 |
| No linked repository | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
export_scad_stl Export OpenSCAD source to an STL ~63
Export OpenSCAD (SCAD) source code into an STL and return it as an embedded resource blob.
| Name | Type | Req | Description |
|---|---|---|---|
| filename | string | – | The name of the output STL file |
| scadCode | string | yes | The OpenSCAD code to render |
| Name | Type | Req | Description |
|---|---|---|---|
| _meta | object | – | – |
| annotations | object | – | – |
| resource | – | yes | – |
| type | string | yes | – |
No examples provided.
render_scad_png Render OpenSCAD source to a PNG image ~185
Render OpenSCAD (SCAD) source code into a PNG preview image. Provide the SCAD text in `scadCode` and optionally set `width`/`height` (pixels). Optional camera control is available via `cameraPreset` (named preset) or `cameraPosition` ({x,y,z}).
| Name | Type | Req | Description |
|---|---|---|---|
| cameraPosition | object | – | Camera position as { x,y,z }. Example: { x: 0, y: -25, z: 20 } |
| cameraPreset | string | – | A named camera preset used when `cameraPosition` is not provided |
| height | number | – | The height of the output image in pixels (default: 600) |
| scadCode | string | yes | The OpenSCAD code to render |
| width | number | – | The width of the output image in pixels (default: 800) |
| Name | Type | Req | Description |
|---|---|---|---|
| _meta | object | – | – |
| annotations | object | – | – |
| data | string | yes | – |
| mimeType | string | yes | – |
| type | string | yes | – |
No examples provided.
How do I install the OpenSCAD MCP server?
OpenSCAD runs locally as an npm package, launched with npx -y openscad-mcp-server. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · openscad-mcp-server
claude mcp add fboldo-openscad-mcp-server -- npx -y openscad-mcp-server
What is the OpenSCAD MCP server?
OpenSCAD is an MCP server listed in the public MCP registry as io.github.fboldo/openscad-mcp-server. Render STL and PNG from OpenSCAD code. This page covers its npm package (openscad-mcp-server).
Is the OpenSCAD MCP server safe to use?
OpenSCAD scores 92 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 OpenSCAD MCP server expose?
OpenSCAD exposes 2 tools: render_scad_png, export_scad_stl. Their descriptions and schemas cost roughly 248 tokens of context every time the server is loaded.
Is the OpenSCAD MCP server still maintained?
OpenSCAD is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the OpenSCAD MCP server under?
OpenSCAD declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.