| asOf | Yes | ISO time of the oldest upstream read this answer used | |
| name | Yes | The package name as the registry spells it | |
| note | Yes | How to read the answer, its rules and limits, and the data attribution | |
| source | Yes | Where the data came from | |
| license | Yes | The declared licence (SPDX expression where given), or null when none is declared | |
| version | Yes | The version analysed (the latest when none was named) | |
| homepage | Yes | The declared homepage, or null | |
| isLatest | Yes | True when the analysed version is the latest | |
| defaulted | No | Present only when the body named no field: which package the answer is for, and why | |
| ecosystem | Yes | The registry: npm or pypi | |
| riskFlags | Yes | Flags from a stated rule list (see note): malicious_package, deprecated, yanked, known_vulnerabilities, high_or_critical_vulnerability, newer_version_available, no_release_in_2_years, very_low_downloads, no_license, no_repository | |
| deprecated | Yes | npm: the deprecation message of this version; PyPI: 'yanked: <reason>' when the release is yanked; null otherwise | |
| osvRecords | Yes | OSV records returned before the same flaw from two databases was folded into one row | |
| repository | Yes | The declared source repository as an https URL, or null | |
| description | Yes | The package's own one-line description | |
| publishedAt | Yes | ISO time the analysed version was published (null when the registry could not be read for dates) | |
| latestVersion | Yes | The registry's latest release (npm's `latest` dist-tag; PyPI's current version) | |
| dependencyCount | Yes | Runtime dependencies this version declares (npm `dependencies`; PyPI `requires_dist` entries not tied to an extra); null when undeclared metadata makes it unknown | |
| vulnerabilities | Yes | Known vulnerabilities OSV.dev lists for THIS version, most severe first | |
| maintainersCount | Yes | Accounts allowed to publish (npm's current maintainers; PyPI's owners and maintainers) | |
| downloadsLastWeek | Yes | Downloads in the last 7 days (npm: api.npmjs.org; PyPI: pypistats.org last_week); null when the counter did not answer | |
| latestPublishedAt | Yes | ISO time the latest release was published | |
| vulnerabilityCount | Yes | Number of vulnerabilities listed (the same flaw published by two databases counts once) | |
| daysSinceLatestRelease | Yes | Whole days since the latest release was published | |