Package Registry Intelligence — npm, PyPI, crates & more 📦

One tool over six software package registries — npm, PyPI, crates.io, RubyGems, NuGet and Packagist. Look up a list of packages or search an ecosystem, and get every package in ONE unified schema: version, license, repository, maintainer, downloads and dependency count. No API key.

Most software depends on packages from a handful of registries. This Actor speaks all the big public ones and normalizes them into a single schema — so you can enrich a dependency list, audit a supply chain, or research a whole ecosystem regardless of language.

npm · PyPI · crates.io · RubyGems · NuGet · Packagist

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What you get per package

ecosystem · name · version · description · license · homepage · repository · author · keywords · downloads · downloads_period · dependencies_count · published_at · package_url.

Input

Look up packages — give each as ecosystem:name:

Ecosystem	Example
npm	npm:express
pypi	pypi:requests
crates	crates:serde
rubygems	rubygems:rails
nuget	nuget:Newtonsoft.Json
packagist	packagist:monolog/monolog

{ "mode": "packages", "packages": ["npm:express", "pypi:requests", "crates:serde"] }

Search an ecosystem by keyword (all except PyPI):

{ "mode": "search", "searchEcosystem": "npm", "searchQuery": "http client", "maxResults": 50 }

Use cases

• Software supply-chain & SBOM — enrich a dependency manifest with license, repo, maintainer and popularity across languages.
• Security & risk — spot unmaintained, unlicensed or low-adoption dependencies.
• Dev-tool market research — search and rank packages in any ecosystem by downloads.

Notes

• No API key. Uses each registry's public API.
• Downloads semantics differ by registry: npm reports last-month installs; crates/RubyGems/NuGet/Packagist report total downloads; PyPI's main API exposes no download count (downloads is null). The downloads_period field tells you which.
• PyPI has no search API, so search mode supports the other five ecosystems.
• Package metadata belongs to its authors and is subject to each package's license.

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Keywords

package registry, npm, PyPI, crates.io, RubyGems, NuGet, Packagist, dependencies, supply chain, SBOM, software composition, license, downloads, maintainer, dev tools, package intelligence, no API key.