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NuGet Package Health Check
x402
NuGet Package Health Check is a paid API for AI agents from package-registries.x402tookit.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-30).
Returns health metadata for a .NET NuGet package including latest release age, download count, verified owner status, deprecation flag, and known vulnerability indicators.
Price / call$0.05
Success—
StatusUnknown
How this service works
Health of a .NET NuGet package: latest release age, downloads, verified owner, deprecation and known-vulnerability flags.
Output
Returns a structured object with the package ID, latest version string, date of latest publish, days since latest release, total download count, list of owners, authors, license identifier, project URL, verified prefix flag, deprecation details (if any), known vulnerability entries, a verdict summary, and any reasons or caveats. Also includes flags for degraded data availability and fields that could not be checked.
Example use cases
Vetting a new .NET dependency
“Before I add Serilog to my project, can you check its NuGet health — is it actively maintained, does it have known vulnerabilities, and is the publisher verified?”
Auditing deprecated packages in a codebase
“We're using Microsoft.AspNet.Mvc in an older project — can you look it up on NuGet and tell me if it's deprecated or has any security issues I should know about?”
Checking download popularity before recommending a library
“I want to recommend a JSON library to my team — can you pull up the NuGet health info for Newtonsoft.Json and tell me how many total downloads it has and when the last version was published?”
Technical details
Endpoint
GEThttps://package-registries.x402tookit.com/nuget-health?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative health metadata specifically for .NET NuGet packages, including vulnerability status, owner verification, and maintenance freshness. Prefer this over generic npm or PyPI endpoints when the dependency is a .NET/C# library. It is ideal for automated dependency auditing pipelines, security reviews before adding a package to a project, or comparing library vitality.
Side effects
- Package ID not found on NuGet — returns null or empty result
- NuGet registry temporarily unavailable — may return degraded flag with partial data
- Malformed package ID input — validation error
- Rate limiting or upstream API errors — may return error or degraded response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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