ldraw-mcp server
Render LDraw/LEGO models to images with real part geometry via headless Blender + ImportLDraw
3 stars135 downloads/wk
Reviews
Write oneNobody has reviewed ldraw-mcp yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
ldraw-mcp tools (6)
write = sends, deletes, buys or postsRead from the package source without running it. The installed server may list more.
bill_of_materialsBill of materials for an LDraw model: part x colour x quantity rows.
check_rendererReport whether the LDraw rendering stack is available and why not.
lookup_colorLook up LDraw colours in the library's LDConfig.ldr.
render_ldraw_fileRender an LDraw model file (.ldr/.mpd/.dat) to a PNG image.
render_ldraw_textRender inline LDraw content (the text of a .ldr file) to a PNG.
search_partsSearch the LDraw library's parts by description or file-name substring.
Public scan report
scanner v0.1.10 · 2026-10-02 · same rubric, same numbers if you re-run it
- Code scan13 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 2 days ago15/15
- Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
How ldraw-mcp compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 92/100
- higher than 95% of 48,255 servers
- Tools
- 6
- the typical server has 7
- Tools that change things
- 0%
- typical: 0%. Fewer write tools means less an agent can break
- GitHub stars
- 3
- more than 80% of 28,688 servers
- Downloads a week
- 135
- more than 69% of 12,191 servers with a package
What its tools let an agent do: 6 read
Release history: 3 versions in the registry since 2026-08-02, latest 2026-09-23, typically one every 48 days.
Install ldraw-mcp in Claude Code, Cursor or VS Code
claude mcp add ldraw-mcp -- uvx ldraw-mcp
What the publisher says
From the ldraw-mcp repository's README, as published. We do not edit it. Read it on GitHub
ldraw-mcp
Give your MCP client eyes for LEGO® models.
Render LDraw files (.ldr / .mpd / .dat) to images with real part geometry — studs, slopes, window glass — using headless Blender and the ImportLDraw addon. The output looks like a BrickLink Stud.io render, with no GUI anywhere in the loop.
A ~90-line .ldr rendered front-left and rear-right — actual bricks, not a geometric proxy.
<!-- mcp-name: io.github.musharna/ldraw-mcp -->
Point a vision-capable model at a build and it sees the actual bricks: crossed rotation matrices, floating plates, sunken windows — the kinds of export bugs a geometric proxy render will happily hide.
Quickstart
# 1. install
pip install ldraw-mcp
# 2. install the LDraw parts library + ImportLDraw addon
ldraw-mcp-setup
# 3. register with Claude Code
claude mcp add ldraw -- ldraw-mcpThen ask things like "render output/build.ldr and tell me what looks wrong" — the model sees the render, not just the text.
Blender is a prerequisite (see Requirements); it is
not installed by ldraw-mcp-setup.
Tools
azimuths is a comma-separated list of view angles in degrees; each is rendered and the views are stitched horizontally. Elevation is fixed at 22°. Higher samples = cleaner but slower.
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
ldraw-mcp: common questions
- Is ldraw-mcp server safe?
- Yes, by our scan: it is graded A (92/100). Read the ldraw-mcp safety report
- How do I install ldraw-mcp?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does ldraw-mcp need an API key?
- No secret keys are declared. It reads 2 settings from the environment.
- Is ldraw-mcp maintained?
- The last commit was 34 days ago (2026-10-01). The latest release is v0.3.1.
- What can I use instead of ldraw-mcp?
- Servers from other publishers that do the same job: PartCAD MCP server.
- How does ldraw-mcp compare with other MCP servers?
- safety score 92/100 (higher than 95% of 48,255 servers); tools 6 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.
Alternatives to ldraw-mcp
Same job from other publishers: the closest match first, then the best rated.
- PartCADInspect, render, test and export the parts and assemblies of PartCAD hardware packagesnot reviewedEstablishedA