Is Cattrs Safe?
Cattrs — Nerq Trust Score 78.8/100 (B+ grade). Score based on 2 independent trust signals. Last analyzed: 2026-07-21
Cattrs is a Python package with a Nerq Trust Score of 78.8/100 (B+), based on 3 independent data dimensions. Last analyzed: 2026-07-21 Security: 90/100. Popularity: 100/100. Data sourced from PyPI registry, GitHub repository, NVD, OSV.dev, and OpenSSF Scorecard. Last updated: 2026-07-21. Machine-readable data (JSON).
Is Cattrs safe?
Trust Score Breakdown — Cattrs has a Nerq Trust Score of 78.8/100 (B+). Measured across 2 independent trust signals (as of 2026-07-21).
What is Cattrs's trust score?
Cattrs has a Nerq Trust Score of 78.8/100, earning a B+ grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Cattrs?
Cattrs's strongest signal is popularity at 100/100. No known vulnerabilities have been detected.
What is Cattrs and who maintains it?
| Author | Unknown |
| Category | Python Packages |
| Source | N/A |
Similar Pypi by Trust Score
Safety Guide: Cattrs
What is Cattrs?
Cattrs is a Python package — Composable complex class support for attrs and dataclasses..
How to Verify Safety
Run pip audit or safety check. Review on PyPI for download stats.
You can also check the trust score via API: GET /v1/preflight?target=cattrs
Key Safety Concerns for Python package
When evaluating any Python package, watch for: dependency vulnerabilities, malicious uploads, maintenance status.
Measured Signals
Cattrs has a Nerq Trust Score of 79/100 (B+). This score is a composite of automated measurements of security, maintenance, community, and quality signals.
Key Takeaways
- Cattrs has a Trust Score of 79/100 (B+).
- The score is a measured composite — it is not a suitability judgment. Evaluate the individual signals against your own requirements.
- Query the current measured values via the Nerq API.
Detailed Score Analysis
| Dimension | Score |
|---|---|
| Security | 90/100 |
| Maintenance | 92/100 |
| Popularity | 100/100 |
| Quality | 65/100 |
| Community | 35/100 |
Based on 5 dimensions. Data from PyPI registry, GitHub repository, NVD, OSV.dev, and OpenSSF Scorecard.
What data does Cattrs collect?
Cattrs is a Python package maintained by Unknown. It receives approximately 18,276,054 weekly downloads. Licensed under MIT.
As a development package, Cattrs does not directly collect end-user personal data. However, applications built with it may collect data depending on implementation. Privacy score: 80/100.
Review the package's dependencies for potential supply chain risks. Run your package manager's audit command regularly.
Full analysis: Cattrs Privacy Report · Privacy review
Is Cattrs secure?
Security score: 90/100. Cattrs has 0 known vulnerabilities (CVEs) in the National Vulnerability Database. This is a clean record.
Licensed under MIT, allowing code inspection. Open-source packages allow independent security review of the source code.
Run your package manager's audit command (`npm audit`, `pip audit`, `cargo audit`) to check for known vulnerabilities in your dependency tree.
Full analysis: Cattrs Security Report
How we calculated this score
Cattrs's trust score of 78.8/100 (B+) is computed from PyPI registry, GitHub repository, NVD, OSV.dev, and OpenSSF Scorecard. The score reflects 5 independent dimensions: security (90/100), maintenance (92/100), popularity (100/100), quality (65/100), community (35/100). Each dimension is weighted equally to produce the composite trust score.
Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.
Signals last measured on July 21, 2026. Data version: 1.0.
Full methodology documentation · Machine-readable data (JSON API)
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Disclaimer: Nerq trust scores are automated measurements based on publicly available signals. They are not endorsements, verdicts, or guarantees of suitability. Always evaluate the signals against your own requirements.