PyRank
PixarAnimationStudios

usd-core

Universal Scene Description
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

usd-core has 1M monthly downloads and 7K GitHub stars. Version 26.5 supports Python <3.15,>=3.9, first published in 2020.

It is actively maintained, last released in Apr 2026.

It is used by 27 tracked packages, including aitviewer, arxyne and nvidia-srl-usd-to-urdf.

Downloads
Day
22.0K
Week
175.1K
Month
1.0M
Stars
7.4K
Forks
1.4K
Issues
733
Version
26.5

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
84
Adoption
60
Community
80
Provenance
0
How the maintenance status was determined
Last commit
7 days ago
Monthly downloads
1,015,934
• 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
1,015,934
Stars
7,360
Stars per 1k downloads
7.24
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
25,015
Month daily avg
33,864
Momentum
-26.1%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
<3.15,>=3.9
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
LicenseRef-TOST-1.0
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
73 days ago
Total releases
26
Releases/year
4.6
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
265
Monthly downloads
1,015,934
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
74
 
Issue Burden
99.6
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
18.5%
contrib / forks
Stale Release
65d
 
PR Velocity
Active
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 10.2K
Windows 1.1K
macOS 589

Python Versions

3.12
47.2% 5.5K
3.11
34.7% 4.1K
3.10
13.0% 1.5K
3.13
3.5% 405
3.14
1.6% 183

Top Countries

1. US US
10.7K
2. CN CN
187
3. KR KR
150
4. DE DE
138
5. SG SG
133
6. JP JP
104
7. HK HK
93
8. GB GB
88
9. IT IT
58
10. IN IN
54

Package Information

License
LicenseRef-TOST-1.0
First Release
December 1, 2020
Last Release
2 months ago
Last Commit
1 week ago
Latest Version
26.5
Total Releases
26
Contributors
265
Open PRs
264
Archived
No
Author
Pixar Animation Studios
Python Versions
3
Wheels
cp310 cp311 cp312 cp313 cp314 cp36 cp37 cp38 cp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links