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npm Package Metadata Lookup
x402
npm Package Metadata Lookup is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054001/call, status unknown (last checked 2026-09-14).
Fetches npm package metadata including version, dependencies, download counts, repository, and license information.
Price / call$0.054001
Success—
StatusUnknown
How this service works
Fetch npm package metadata: version, dependencies, downloads, repository, license. Includes weekly download count.
Output
Returns structured metadata for the specified npm package: current version, list of dependencies, weekly download count, repository URL, and license type.
Example use cases
Audit project dependencies for security
“Can you check the versions, licenses, and weekly download counts for all the packages listed in our package.json file? I want to make sure we're not using any unmaintained or risky dependencies.”
Verify package compatibility before upgrade
“I'm thinking about updating lodash to the latest version. Can you grab the current version info, dependencies, and download stats so I can see if it's still actively maintained and widely used?”
Research alternative packages quickly
“We're looking to replace our HTTP client library. Can you pull up the metadata for axios, node-fetch, and got so we can compare their versions, dependencies, licenses, and download popularity?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/npm-package-infoWhen to prefer
Use this endpoint when you need quick, structured npm package metadata — version, license, dependencies, and download stats — without scraping the npm website or authenticating with the npm registry directly. Ideal for agent workflows that need to vet or audit JavaScript dependencies.
Side effects
- Package not found — returns error if the package name doesn't exist on npm
- Invalid or missing package query parameter — returns validation error
- npm registry unavailable — upstream timeout or error
- Rate limiting or payment failure — 402 payment required if funds are insufficient
Input
{
"package": "lodash"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| packagerequired | string |
Output
{
"name": "lodash",
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.054000000000000006,
"settlement_id": "0x3d597d6c4b3877f40b31495c1e8c23bcbd9409d6f181da22be81f6144b56dccf"
},
"capability": "npm-package-info",
"latency_ms": 103,
"provenance": {
"source": "registry.npmjs.org",
"fetched_at": "2026-06-16T01:23:57.818Z"
}
},
"author": "John-David Dalton",
"created": "2012-04-23T16:37:11.912Z",
"license": "MIT",
"homepage": "https://lodash.com/",
"keywords": [
"modules",
"stdlib",
"util"
],
"dist_tags": {
"latest": "4.18.1"
},
"repository": "git+https://github.com/lodash/lodash.git",
"description": "Lodash modular utilities.",
"dependencies": [],
"last_modified": "2026-06-15T01:29:35.749Z",
"latest_version": "4.18.1",
"total_versions": 117,
"recent_versions": [
{
"version": "4.18.1",
"published": "2026-04-01T21:01:20.458Z"
},
{
"version": "4.18.0",
"published": "2026-03-31T18:18:42.717Z"
},
{
"version": "4.17.23",
"published": "2026-01-21T17:29:52.831Z"
},
{
"version": "4.17.21",
"published": "2021-02-20T15:42:16.891Z"
},
{
"version": "4.17.20",
"published": "2020-08-13T16:53:54.152Z"
}
],
"dev_dependencies": [],
"weekly_downloads": 161341623
}Schema · Response
{
"name": {
"type": "string"
},
"license": {
"type": "string"
},
"dependencies": {
"type": "array"
},
"latest_version": {
"type": "string"
},
"weekly_downloads": {
"type": "integer"
}
}Tags
x402
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