PyRank
unum-cloud

usearch

Fast Open-Source Search & Clustering engine × for Vectors & Arbitrary Objects × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

usearch has 505K monthly downloads and 4K GitHub stars. Version 2.25.3 supports Python 3.10+, first published in 2023.

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

It is built on top of numpy and tqdm. It is used by 50 tracked packages, including fast-plaid, flowpad and anteroom.

GitHub topics include kann, vector-search and approximate-nearest-neighbor-search.

Downloads
Day
13.3K
Week
127.3K
Month
505.5K
Stars
4.2K
Forks
327
Issues
80
Version
2.25.3

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
75
Adoption
77
Community
70
Provenance
100
How the maintenance status was determined
Last commit
43 days ago
Monthly downloads
505,456
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
505,456
Stars
4,199
Stars per 1k downloads
8.31
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
18,184
Month daily avg
16,849
Momentum
+7.9%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=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
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
43 days ago
Total releases
154
Releases/year
48.3
• 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
115
Monthly downloads
505,456
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
62
 
Issue Burden
19.1
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
35.2%
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 7.2K
Windows 105
macOS 105

Python Versions

3.12
42.0% 3.1K
3.13
41.0% 3.0K
3.11
10.7% 782
3.14
3.6% 264
3.10
2.6% 187

Top Countries

1. US US
6.8K
2. CN CN
2.9K
3. SG SG
182
4. DE DE
81
5. GB GB
69
6. SE SE
68
7. JP JP
62
8. CA CA
56
9. KR KR
30
10. NL NL
30

Package Information

License
Apache-2.0
First Release
May 1, 2023
Last Release
1 month ago
Last Commit
1 month ago
Latest Version
2.25.3
Total Releases
154
Contributors
115
Open PRs
19
Archived
No
Author
Ash Vardanian
Wheels
cp310 cp311 cp312 cp313 cp314 cp36 cp37 cp38 cp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links