PyRank
rcsb

mmcif

mmCIF Core Access Library
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

mmcif has 3.9M monthly downloads and 50 GitHub stars. Version 1.1.1 supports Python 3.8+, first published in 2018.

It is stably maintained under a permissive license, last released in Apr 2026.

It is built on top of msgpack and requests. It is used by 34 tracked packages, including hbat, rnapolis and pestifer.

Downloads
Day
76.8K
Week
173.0K
Month
3.9M
Stars
50
Forks
18
Issues
6
Version
1.1.1

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
36
Adoption
60
Community
70
Provenance
0
How the maintenance status was determined
Last commit
72 days ago
Monthly downloads
3,874,001
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
3,874,001
Stars
50
Stars per 1k downloads
0.01
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
24,711
Month daily avg
129,133
Momentum
-80.9%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.8
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
72 days ago
Total releases
80
Releases/year
9.6
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
26
Monthly downloads
3,874,001
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
59
 
Issue Burden
-
per 1k stars
Discussions
-
per 1k stars
Fork Ratio
144.4%
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 65.7K
macOS 8
Windows 1

Python Versions

3.11
99.9% 65.7K
3.10
0.1% 33
3.12
0.0% 11
3.13
0.0% 7
3.14
0.0% 5

Top Countries

1. US US
47.8K
2. CA CA
7.7K
3. AU AU
5.9K
4. DE DE
2.4K
5. GB GB
464
6. KR KR
459
7. FR FR
398
8. ES ES
296
9. SE SE
228
10. IN IN
26

Package Information

License
Apache-2.0
First Release
March 9, 2018
Last Release
2 months ago
Last Commit
2 months ago
Latest Version
1.1.1
Total Releases
80
Contributors
26
Open PRs
2
Archived
No
Python Versions
3 3.8 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
cp310 cp311 cp312 cp39 pp37
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links