No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
atheris has 198K monthly downloads and 2K GitHub stars. Version 3.1.0, first published in 2020.
It is actively maintained, last released in Jun 2026.
It is used by 4 tracked packages, including atherislitellm, fuzz-introspector and testgenie-py.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
65
Adoption
72
Community
45
Provenance
0
How the maintenance status was determined
Last commit
19 days ago
Monthly downloads
197,637
•
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
197,637
Stars
1,637
Stars per 1k downloads
8.28
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
7,233
Month daily avg
6,588
Momentum
+9.8%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
Not specified
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
Package does not declare a minimum Python version.
License categories
License
Not specified
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
Package does not declare a license.
How the release cadence was determined
Last release
20 days ago
Total releases
31
Releases/year
5.5
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
37
Monthly downloads
197,637
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
54
Issue Burden
18.9
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
29.8%
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
5.1K
Windows
74
macOS
71
Python Versions
3.12
37.9%
2.0K
3.11
33.3%
1.7K
3.13
21.4%
1.1K
3.10
4.6%
238
3.14
2.8%
147
Top Countries
1.
US
4.3K
US
2.
DE
402
DE
3.
SG
345
SG
4.
CN
207
CN
5.
HK
105
HK
6.
CA
37
CA
7.
IN
13
IN
8.
LT
11
LT
9.
GB
9
GB
10.
JP
8
JP
Dependencies
0
No dependencies
Used By
4
Package Information
License
Unknown
First Release
November 17, 2020
Last Release
2 weeks ago
Last Commit
2 weeks ago
Latest Version
3.1.0
Total Releases
31
Contributors
37
Open PRs
8
Archived
No
Author
Bitshift
Wheels
cp310
cp311
cp312
cp313
cp37
cp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh