PyPI Stats
mesa

mesa

Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors.
PyPI GitHub
Downloads
Day
2.0K
Week
15.8K
Month
65.8K
Stars
3.6K
Forks
1.3K
Issues
120
Version
3.5.1

Package Insights

What's this?
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
90
Popularity
79
Adoption
68
Community
100
How the maintenance status was determined
Last commit
26 days ago
Monthly downloads
65,782
• 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
65,782
Stars
3,625
Stars per 1k downloads
55.11
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
2,263
Month daily avg
2,193
Momentum
+3.2%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.12
• 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
52 days ago
Total releases
88
Releases/year
7.7
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
198
Monthly downloads
65,782
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
100
 
Issue Burden
33.1
per 1k stars
Discussions
107.9
per 1k stars
Fork Ratio
15.7%
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 1.5K
Windows 105
macOS 41

Python Versions

3.12
46.6% 729
3.11
33.4% 523
3.10
10.9% 171
3.13
5.9% 93
3.8
3.1% 49

Top Countries

1. US US
1.1K
2. SG SG
265
3. CN CN
90
4. NL NL
57
5. SA SA
26
6. DE DE
22
7. AT AT
14
8. BR BR
10
9. TW TW
10
10. ES ES
9

Dependencies

5
65 optional dependencies

Used By

29
View all 29 dependents

Package Information

License
Apache 2.0
First Release
December 16, 2014
Last Release
1 month ago
Last Commit
3 weeks ago
Latest Version
3.5.1
Total Releases
88
Contributors
198
Open PRs
33
Archived
No
Python Versions
3.12 3.13 3.14
Wheels
py3
Keywords
ABM agent based model modeling multi-agent simulation
Topics
mesa agent-based-modeling agent-based-simulation simulation-framework simulation simulation-environment complex-systems complexity-analysis modeling-agents spatial-models gis
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links