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Package Registry Info
x402
Package Registry Info is a paid API for AI agents from conclavex402.pythonanywhere.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Returns package registry metadata (latest version, summary, license, dependency count, and 30-day downloads) for a single PyPI or npm package.
Price / call$0.01
Success—
StatusUnknown
How this service works
Call before adding or upgrading a dependency: package-registry metadata for one package (PyPI or npm): latest version, summary, license, dependency count; PyPI also returns 30-day downloads.
Output
A JSON object containing the package name, ecosystem (pypi or npm), latest version string, one-line summary, license identifier (e.g. Apache-2.0), dependency count, homepage URL, and for PyPI packages the 30-day download count. Also includes a staleness flag and staleness age in seconds.
Example use cases
Pre-install dependency vetting
“I'm about to add 'axios' from npm to my project — can you grab its latest version, license, and number of dependencies so I can decide if it's worth it?”
License compliance check
“Can you look up the license for the 'django' package on PyPI? I need to make sure it's compatible with our commercial project before we proceed.”
Upgrade decision for existing dependency
“We're using an older version of 'numpy' — what's the current latest version on PyPI and how many downloads has it had in the last 30 days? I want to see if it's still widely used before upgrading.”
Technical details
Endpoint
GEThttps://conclavex402.pythonanywhere.com/v1/pkg?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs quick, structured package metadata (version, license, downloads) for a single PyPI or npm package prior to adding or upgrading a dependency, and does not need full release history, changelogs, or vulnerability scanning. It is especially useful for automated dependency-vetting pipelines or license compliance checks where a pay-per-call model is preferable to maintaining a registry API key.
Side effects
- Package not found on the specified registry returns an error or empty result
- Ambiguous package name without specifying ecosystem may return wrong registry data
- Stale cache may return slightly outdated metadata (indicated by stale flag and staleness_sec)
- Network or upstream registry outage may cause timeout or error response
- Missing required query parameters (package name or type) results in a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"home": "https://requests.readthedocs.io",
"name": "requests",
"license": "Apache-2.0",
"summary": "Python HTTP for Humans.",
"version": "2.32.3",
"downloads30d": 1234567,
"requires_python": ">=3.8"
},
"name": "requests",
"route": "pkg",
"stale": false,
"source": "pypi",
"ecosystem": "pypi",
"staleness_sec": 0
}
}Tags
x402
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