stlToSolid
MCPB · STLTOSOLID-0.6.1.MCPB · 2 COMPONENTS
Turn STL and OBJ meshes and dimensioned drawings into real CAD solids and Fusion 360 scripts.
Available components
Last scanned (15 minutes ago)
Scores higher than 73% of MCPB servers
Category Developer Tools
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 Security12
- No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.Unverified
- Known CVEs were checked across the 52 of 52 dependencies we could resolve, so this covers what we could see, not the whole tree.Partial
- Install-script risk not yet assessed.Unverified
- 11 of 52 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency32
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- License check failed: the license (PolyForm-Noncommercial-1.0.0) isn't a recognized OSI-approved license. See how to fix → Fail
- Actively maintained (last published 2 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
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 2233 tokens (~148/item across 15 items; 12 tools + 3 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
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 (83% 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 12 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
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.
- 2 Nov 26 42
First indexed and scored.
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 mcpb/https://github.com/Crypto69/stlToSolid/releases/download/v0.6.1/stltosolid-0.6.1.mcpb@0.6.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | mcpb |
| Reason | No attestation published |
Background: How many MCP packages publish verified provenance →
Dependencies 52 packages
| Packages resolved | 52 |
|---|---|
| Stale | 1 |
| No linked repository | 10 |
| 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 →
build_recipe ~117
Build a Blueprint recipe into a STEP and a parametric Fusion 360 script (User Parameters, sketches, extrudes). The recipe is checked first and refused with the reasons if it cannot be built.
| Name | Type | Req | Description |
|---|---|---|---|
| out_dir | – | – | Folder for the results. Default: one folder per part under the output folder. |
| recipe | object | yes | The recipe; see stltosolid://blueprint/recipe-schema |
| title | – | – | Name for the part and its files |
| wait_s | – | – | Seconds to wait before answering with a job_id |
| Name | Type | Req | Description |
|---|---|---|---|
| elapsed_s | – | – | – |
| error | – | – | – |
| file_urls | object | – | Download URLs, on a remote server |
| files | object | – | Result files by kind, e.g. step, fusion_script |
| finished | boolean | yes | False means it is still going: call job_status again |
| job_id | string | yes | – |
| log_tail | array | – | – |
| ok | boolean | yes | True only when it finished and wrote its result |
| report | object | – | Route, deviations, face counts and surface types |
| status | string | yes | queued, running, done, error or cancelled |
| summary | string | yes | One sentence on where it stands |
No examples provided.
cancel_job ~38
Stop a running conversion or build. Its partial work is discarded; finished results stay.
| Name | Type | Req | Description |
|---|---|---|---|
| job_id | string | yes | The job_id to stop |
Structured output declared, but exposes no named fields.
No examples provided.
convert_mesh ~508
Convert a mesh to a STEP solid. Method 'auto' tries prismatic (sketches and extrudes), then face groups, then faceted, held to the acceptance limits. Method 'loft' slices along an axis and lofts the outlines into one smooth solid. Runs one job at a time and can take from seconds to over an hour: it answers after wait_s with a job_id if it is still going. Then call job_status.
| Name | Type | Req | Description |
|---|---|---|---|
| accept_hole_max | number | – | Max deviation on bores, mm |
| accept_max | number | – | Max single-point deviation, mm |
| accept_p95 | number | – | Max p95 surface deviation, mm |
| accept_vol_pct | number | – | Max volume error, percent |
| bodies | – | – | Body indices from inspect_mesh; default all |
| face_groups | boolean | – | Try the face-group route between prismatic and faceted |
| force_prismatic | boolean | – | Attempt a prismatic fit even for scan-like input |
| loft_ruled | boolean | – | Loft: one face per section pair instead of smooth |
| method | string | – | auto for designed parts, loft for smooth ones |
| out_dir | – | – | Folder for the results. Default: one folder per part under the output folder. |
| path | string | yes | Absolute path of the mesh file |
| reduce_tol | number | – | Faceted output: decimate curved regions within this, mm (0 = off) |
| scale | number | – | Extra factor after units. Units only enlarge, so a cm design exported as mm needs 0.1. |
| slice_axis | string | – | Loft: slicing axis |
| slice_from | – | – | Partial loft: start plane, mm from the bounding-box centre |
| slice_join | number | – | Loft: join loose section ends closer than this, mm |
| slice_mm | number | – | Loft: section spacing, mm |
| slice_range_dir | string | – | Partial loft: direction from the start plane |
| slice_range_mm | number | – | Partial loft: length from the start plane, mm (0 = whole body) |
| slice_trim | number | – | Loft: cut slivers thinner than this, mm |
| tol | number | – | Fit tolerance for lines, arcs and splines, mm |
| units | string | – | What the file's numbers mean. STL and OBJ carry no units. |
| wait_s | – | – | Seconds to wait before answering with a job_id |
| Name | Type | Req | Description |
|---|---|---|---|
| elapsed_s | – | – | – |
| error | – | – | – |
| file_urls | object | – | Download URLs, on a remote server |
| files | object | – | Result files by kind, e.g. step, fusion_script |
| finished | boolean | yes | False means it is still going: call job_status again |
| job_id | string | yes | – |
| log_tail | array | – | – |
| ok | boolean | yes | True only when it finished and wrote its result |
| report | object | – | Route, deviations, face counts and surface types |
| status | string | yes | queued, running, done, error or cancelled |
| summary | string | yes | One sentence on where it stands |
No examples provided.
fusion_handoff ~72
The Python to run in Fusion 360 for a result, to pass to Autodesk's Fusion MCP script tool: the script itself for a .py, or a small importer for a .step. Only for files this server wrote.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | A .py or .step result from this server |
Structured output declared, but exposes no named fields.
No examples provided.
inspect_mesh ~116
Look at a mesh file before converting it: size, triangle count, whether it is closed, its bodies (largest first), a warning when the units look wrong, and a suggested method. Takes a second or two on most parts.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Absolute path of the mesh file |
| scale | number | – | Extra factor after units. Units only enlarge, so a cm design exported as mm needs 0.1. |
| units | string | – | What the file's numbers mean. STL and OBJ carry no units. |
Structured output declared, but exposes no named fields.
No examples provided.
inspect_step ~61
Read a STEP file back the way a CAD program will: solids, faces, surface types, bounding box, volume, and whether it is closed and valid. Use it to check a result.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Absolute path of the .step file |
Structured output declared, but exposes no named fields.
No examples provided.
job_status ~69
Where a conversion or build stands. Waits up to wait_s for it to finish, so call it again straight away while `finished` is false.
| Name | Type | Req | Description |
|---|---|---|---|
| job_id | string | yes | The job_id a tool answered with |
| wait_s | number | – | Seconds to wait for it to finish |
| Name | Type | Req | Description |
|---|---|---|---|
| elapsed_s | – | – | – |
| error | – | – | – |
| file_urls | object | – | Download URLs, on a remote server |
| files | object | – | Result files by kind, e.g. step, fusion_script |
| finished | boolean | yes | False means it is still going: call job_status again |
| job_id | string | yes | – |
| log_tail | array | – | – |
| ok | boolean | yes | True only when it finished and wrote its result |
| report | object | – | Route, deviations, face counts and surface types |
| status | string | yes | queued, running, done, error or cancelled |
| summary | string | yes | One sentence on where it stands |
No examples provided.
plan_xray ~166
Where a stack of X-Ray section planes would go: their offsets and how many there are. Cheap: no tracing. from_mm and to_mm are measured from the bounding-box centre along the axis.
| Name | Type | Req | Description |
|---|---|---|---|
| axis | string | yes | The axis the planes are square to |
| from_mm | number | yes | Start plane, mm from the centre |
| path | string | yes | Absolute path of the mesh file |
| scale | number | – | Extra factor after units. Units only enlarge, so a cm design exported as mm needs 0.1. |
| step_mm | number | – | Spacing, mm |
| to_mm | number | yes | End plane, mm from the centre |
| units | string | – | What the file's numbers mean. STL and OBJ carry no units. |
Structured output declared, but exposes no named fields.
No examples provided.
preview_recipe ~74
Check a Blueprint recipe and draw it: four pictures (front, top, right, isometric), its size and volume, or the list of checks that failed. No files are written. Use it while reading a drawing.
| Name | Type | Req | Description |
|---|---|---|---|
| recipe | object | yes | The recipe; see stltosolid://blueprint/recipe-schema |
No output schema declared.
No examples provided.
suggest_loft_axis ~156
Which axis a whole-body loft would slice along, and the score of each axis (fewest one-slice runs wins). Under a few seconds.
| Name | Type | Req | Description |
|---|---|---|---|
| join | number | – | Join loose section ends closer than this, mm (0 = never) |
| path | string | yes | Absolute path of the mesh file |
| scale | number | – | Extra factor after units. Units only enlarge, so a cm design exported as mm needs 0.1. |
| slice_mm | number | – | Section spacing, mm |
| trim | number | – | Cut slivers thinner than this out of closed loops, mm (0 = off) |
| units | string | – | What the file's numbers mean. STL and OBJ carry no units. |
Structured output declared, but exposes no named fields.
No examples provided.
trace_section ~266
Slice a mesh at one plane and see it: a picture of the fitted outline with a millimetre grid, and how many lines, arcs, circles and splines it took. offset_mm is measured from the bounding-box centre along the axis. Red curves in the picture are open chains, where the mesh leaks.
| Name | Type | Req | Description |
|---|---|---|---|
| axis | string | – | The axis the plane is square to |
| include_curves | boolean | – | Also return every fitted curve as 3-D data. Can be long. |
| join | number | – | Join loose section ends closer than this, mm (0 = never) |
| offset_mm | number | – | Plane position, mm from the bounding-box centre |
| outline | boolean | – | Closed outer outlines only: leave out open chains and holes |
| path | string | yes | Absolute path of the mesh file |
| scale | number | – | Extra factor after units. Units only enlarge, so a cm design exported as mm needs 0.1. |
| tol | number | – | Fit tolerance for lines, arcs and splines, mm |
| trim | number | – | Cut slivers thinner than this out of closed loops, mm (0 = off) |
| units | string | – | What the file's numbers mean. STL and OBJ carry no units. |
No output schema declared.
No examples provided.
xray_fusion_script ~300
Write a Fusion 360 script with one real sketch per slice, between two planes. With extrude, each slice is also extruded to the next, so the stack comes out as solid slabs. No STEP. Up to 500 slices and about four minutes of fitting: call plan_xray first.
| Name | Type | Req | Description |
|---|---|---|---|
| axis | string | yes | The axis the planes are square to |
| extrude | boolean | – | Extrude each slice to the next: solid slabs |
| from_mm | number | yes | Start plane, mm from the centre |
| join | number | – | Join loose section ends closer than this, mm (0 = never) |
| out_dir | – | – | Folder for the results. Default: one folder per part under the output folder. |
| outline | boolean | – | Closed outer outlines only |
| path | string | yes | Absolute path of the mesh file |
| scale | number | – | Extra factor after units. Units only enlarge, so a cm design exported as mm needs 0.1. |
| step_mm | number | – | Spacing, mm |
| to_mm | number | yes | End plane, mm from the centre |
| tol | number | – | Fit tolerance for lines, arcs and splines, mm |
| trim | number | – | Cut slivers thinner than this out of closed loops, mm (0 = off) |
| units | string | – | What the file's numbers mean. STL and OBJ carry no units. |
Structured output declared, but exposes no named fields.
No examples provided.
How do I install the stlToSolid MCP server?
stlToSolid ships as an MCPB bundle, a single file you download and open in an MCP host that supports MCPB bundles, such as Claude Desktop. The host reads the launch command from the bundle's own manifest, so there is no command to copy. Before opening it, check the file's SHA-256 matches the one the MCP registry declares for it, 4e9808c98cda710cda1b987942810ab8c58b7400b1ccdf911e80a1d773295f0d; the commands to do that are on this page. If it does not match, do not open it.
mcpb · stltosolid-0.6.1.mcpb
Download bundleCheck the download matches the SHA-256 the MCP registry declares before you open it. If it does not match, do not open the file.
SHA-256
4e9808c98cda710cda1b987942810ab8c58b7400b1ccdf911e80a1d773295f0d
macOS / Linux
echo "4e9808c98cda710cda1b987942810ab8c58b7400b1ccdf911e80a1d773295f0d stltosolid-0.6.1.mcpb" | shasum -a 256 -c
Windows (PowerShell)
(Get-FileHash -Algorithm SHA256 .\stltosolid-0.6.1.mcpb).Hash -eq "4e9808c98cda710cda1b987942810ab8c58b7400b1ccdf911e80a1d773295f0d"
Run it in the folder you saved the bundle to, then open the file with an MCPB-capable host such as Claude Desktop.
What is the stlToSolid MCP server?
stlToSolid is an MCP server listed in the public MCP registry as io.github.Crypto69/stltosolid. Turn STL and OBJ meshes and dimensioned drawings into real CAD solids and Fusion 360 scripts. This page covers its MCPB bundle (https://github.com/Crypto69/stlToSolid/releases/download/v0.6.1/stltosolid-0.6.1.mcpb).
Is the stlToSolid MCP server safe to use?
stlToSolid scores 42 out of 100 on VerifyMCP. 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 stlToSolid MCP server expose?
stlToSolid exposes 12 tools: inspect_mesh, convert_mesh, job_status, cancel_job, suggest_loft_axis, and 7 more. Their descriptions and schemas cost roughly 1,943 tokens of context every time the server is loaded.
What licence is the stlToSolid MCP server under?
stlToSolid declares the PolyForm-Noncommercial-1.0.0 licence, which is not on the OSI-approved list. Read the terms before using it at work, and note this covers the source only, not the cost of any service it calls.