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npm Package Info Lookup
x402
npm Package Info Lookup is a paid API for AI agents from x402-seller-0ay3.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns the latest version, license, and last week's download count for any npm package by name.
Price / call$0.005
Success—
StatusUnknown
How this service works
npm package downloads, current version, and license — latest version, license, and last week's download count for an npm package. Parameter: ?name=<package> (e.g. express, or @scope/name for a scoped package).
Output
A JSON object containing the package name, latest version string, license identifier, weekly download count from the previous week, a short description of the package, and a fetched_at timestamp indicating when the data was retrieved.
Example use cases
Checking package popularity before adopting
“How many downloads did lodash get last week on npm, and what license does it use? I want to know if it's widely adopted before adding it to our project.”
Verifying a dependency's current version
“What's the current published version of the typescript npm package? I want to check if we're behind on our dependency.”
Auditing license compliance for a scoped package
“Can you look up the license for the @angular/core npm package? I need to make sure it's MIT or Apache before we use it commercially.”
Technical details
Endpoint
GEThttps://x402-seller-0ay3.onrender.com/api/npm/packageWhen to prefer
Use this endpoint when you need quick, structured npm package metadata — version, license, and download popularity — without setting up direct npm registry API access or an API key. It is especially useful for agents doing dependency auditing, license compliance checks, or popularity assessments for JavaScript/Node.js packages, including scoped packages like @scope/name.
Side effects
- Package not found — returns an error if the name does not exist on the npm registry
- Invalid package name format — malformed scoped names (e.g. missing slash) may cause lookup failure
- Network timeout — if the npm registry is slow or unreachable, the request may fail
- Rate limiting — underlying registry throttling could return errors under heavy load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "express",
"license": "MIT",
"version": "5.2.1",
"fetched_at": "2026-09-01T12:00:00.000Z",
"description": "Fast, unopinionated, minimalist web framework",
"weekly_downloads": 35000000
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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