PyPI Stats
MolSSI

qcfractal

A distributed compute and database platform for quantum chemistry.
PyPI GitHub

Shared Repository

This package shares its GitHub repository (MolSSI/QCFractal) with 3 other packages. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
8
Week
89
Month
1.4K
Stars
160
Forks
55
Issues
37
Version
0.64

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
80
Popularity
48
Adoption
31
Community
70
How the maintenance status was determined
Last commit
40 days ago
Monthly downloads
1,375
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
1,375
Stars
160
Stars per 1k downloads
116.36
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
13
Month daily avg
46
Momentum
—
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Momentum not reported for packages with < 5,000 monthly downloads — percentages are noisy at low volume.
Python version support tiers
requires_python
<3.14,>=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
BSD-3-Clause
• 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
63 days ago
Total releases
47
Releases/year
6.5
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
26
Monthly downloads
1,375
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
64
 
Issue Burden
231.2
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
47.3%
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 5

Python Versions

3.13
60.0% 3
3.10
40.0% 2

Top Countries

1. US US
17
2. CN CN
3
3. CA CA
1

Dependencies

9
6 optional dependencies

Used By

1

Package Information

License
BSD-3-Clause
First Release
February 15, 2019
Last Release
2 months ago
Last Commit
1 month ago
Latest Version
0.64
Total Releases
47
Contributors
26
Open PRs
4
Archived
No
Python Versions
3
Wheels
py3
Topics
quantum-chemistry distributed-computing python database-platform computational-chemistry
Tracking Since
January 14, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links