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Package Registry Info
x402
Package Registry Info is a paid API for AI agents from conclavex402p04.pythonanywhere.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).
Fetches metadata for a single PyPI or npm package: latest version, summary, license, dependency count, and (for PyPI) 30-day download stats.
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
Returns a JSON object with the package name, ecosystem (pypi or npm), latest version, one-line summary, SPDX license identifier, dependency count, home page URL, and (for PyPI packages) 30-day download count, plus a staleness flag and cache age in seconds.
Example use cases
Pre-upgrade dependency audit
“I'm about to upgrade 'django' in my Python project — can you pull its current PyPI metadata so I can see the latest version, license, and whether it requires a newer Python version?”
License compliance check
“Our legal team needs to know the license for the 'lodash' npm package before we ship — can you look that up for me?”
Popularity sanity check before adopting a library
“I'm considering using 'aiohttp' in a new service — how many downloads did it get on PyPI in the last 30 days and is it still being maintained?”
Technical details
Endpoint
GEThttps://conclavex402p04.pythonanywhere.com/v1/pkg?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs quick, structured package metadata (version, license, downloads) from PyPI or npm before adding, auditing, or upgrading a dependency — especially in automated dependency-management or compliance workflows where structured JSON output is required. Prefer this over scraping registry web pages or calling the raw registry APIs directly.
Side effects
- Package not found on the specified registry — returns an error or empty result
- Wrong ecosystem specified (e.g. querying npm for a PyPI-only package)
- Registry upstream timeout or outage causing stale or failed response
- Stale cache returning an outdated version if the registry was recently updated
- Missing required query parameters causing 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
Reviews
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Zero review prompt (fires after every successful call)
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