PyRank
materialsproject

pymatgen

Python Materials Genomics (pymatgen) is a robust materials analysis code that defines classes for structures and molecules with support for many electronic structure codes. It powers the Materials Project.
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

pymatgen has 902K monthly downloads and 2K GitHub stars. Version 2026.5.4 supports Python 3.11+, first published in 2011.

It is actively maintained under a permissive license, last released in May 2026.

It is built on top of pymatgen-core. It is used by 341 tracked packages, including pymatgen-io-validation, pyxtal and jax-md.

GitHub topics include materials, science and materials-science.

Downloads
Day
28.7K
Week
296.8K
Month
902.4K
Stars
1.9K
Forks
957
Issues
141
Version
2026.5.4

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
75
Adoption
99
Community
90
Provenance
100
How the maintenance status was determined
Last commit
5 days ago
Monthly downloads
902,395
• 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
902,395
Stars
1,919
Stars per 1k downloads
2.13
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
42,398
Month daily avg
30,080
Momentum
+41.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.11
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
MIT
• 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
411
Releases/year
28.0
• 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
279
Monthly downloads
902,395
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
86
 
Issue Burden
73.5
per 1k stars
Discussions
58.9
per 1k stars
Fork Ratio
29.2%
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 16.1K
macOS 1.5K
Windows 815

Python Versions

3.12
36.7% 6.3K
3.10
25.5% 4.4K
3.11
24.0% 4.2K
3.14
7.9% 1.4K
3.13
5.9% 1.0K

Top Countries

1. US US
15.5K
2. SG SG
473
3. DE DE
430
4. IE IE
390
5. CN CN
373
6. BE BE
261
7. GB GB
258
8. HK HK
206
9. NO NO
194
10. RU RU
120
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
MIT
First Release
November 12, 2011
Last Release
2 months ago
Last Commit
6 days ago
Latest Version
2026.5.4
Total Releases
411
Contributors
279
Open PRs
1
Archived
No
Python Versions
3 3.11 3.12 3.13 3.14
Wheels
cp310 cp311 cp312 cp313 cp36 cp37 cp38 cp39 py3
Keywords
ABINIT VASP analysis crystal diagrams electronic gaussian materials nwchem phase project qchem science structure
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links