No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
build123d has 193K monthly downloads and 3K GitHub stars. Version 0.11.1 supports Python <3.15,>=3.10, first published in 2023.
It is actively maintained under a permissive license, last released in Jul 2026.
It is built on top of anytree, cadquery-ocp-novtk and ezdxf. It is used by 41 tracked packages, including bd-warehouse, build123d-drafting-helpers and build123d-mcp.
GitHub topics include 3d, brep and cad.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
71
Adoption
72
Community
60
Provenance
100
How the maintenance status was determined
Last commit
4 days ago
Monthly downloads
192,713
•
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
192,713
Stars
2,569
Stars per 1k downloads
13.33
Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
•
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
6,539
Month daily avg
6,424
Momentum
+1.8%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
<3.15,>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
•
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
Apache-2.0
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
4 days ago
Total releases
13
Releases/year
5.0
Rapid
Last release within 365 days and > 12 releases/year
•
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
76
Monthly downloads
192,713
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
81
Issue Burden
126.5
per 1k stars
Discussions
31.1
per 1k stars
Fork Ratio
31.8%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
3.5K
Windows
772
macOS
635
Python Versions
3.12
51.6%
2.5K
3.11
21.6%
1.1K
3.13
12.2%
596
3.14
8.1%
395
3.10
6.6%
322
Top Countries
1.
US
3.9K
US
2.
CN
184
CN
3.
DE
137
DE
4.
CA
76
CA
5.
JP
74
JP
6.
IN
68
IN
7.
HK
54
HK
8.
GB
49
GB
9.
SG
47
SG
10.
TW
45
TW
Dependencies
17
- anytree <3,>=2.8.0
- cadquery-ocp-novtk <8.0,>=7.9
- ezdxf <2,>=1.1.0
- ipython <10,>=8.0.0
- lib3mf >=2.4.1
- numpy <3,>=2
- ocp-gordon <0.3,>=0.2
- ocpsvg <0.7,>=0.6
- py-lib3mf >=2.4.1
- requests <3,>=2.32
- scikit-learn <2,>=1.5
- scipy
- svgpathtools <2,>=1.5.1
- sympy
- trianglesolver
- typing-extensions <5,>=4.6.0
- webcolors ~=24.8.0
17 optional dependencies
- black[development]
- build123d[all]
- cadquery-ocp-stubs[stubs]
- mypy[development]
- ocp-vscode[ocp-vscode]
- pylint[development]
- pytest[development]
- pytest-benchmark[development]
- pytest-cov[development]
- pytest-xdist[development]
- sphinx[docs]
- sphinx-autodoc-typehints[docs]
- sphinx-copybutton[docs]
- sphinx-design[docs]
- sphinx-hoverxref[docs]
- sphinx-rtd-theme[docs]
- wheel[development]
Used By
41
- bd-warehouse
- build123d-drafting-helpers
- build123d-mcp
- draftwright
- augura
- bdbox
- burr-build123d
- agentcad
- yacv-server
- wormgear
- marimo-cad
- partomatic
- estampo
- b3dkit
- makerrepo
- partcad
- agentcad-cli
- b123d-positioning
- rocketsmith
- gfthings
- cadquery-web-viewer
- igniscad
- build123d-ease
- gflabel
- pip-hinge
- cad-3dto2d
- buildscad
- cad-khana
- bd-vslot
- phydrax
- b3d-validate
- bumo
- nwo-text-cad
- keeb-snakeskin
- cq-studio
- anywidget-cad-viewer
- capistry
- monobd
- michelangelocc
- cad-tools
- ripuzz
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
Apache-2.0
First Release
December 5, 2023
Last Release
5 days ago
Last Commit
5 days ago
Latest Version
0.11.1
Total Releases
13
Contributors
76
Open PRs
30
Archived
No
Python Versions
3
Wheels
py3
Keywords
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh