2 units. A failed run costs 0. The same input within 1 h costs 0.

package-info

Q: How do I get npm and PyPI data through an API?

Call POST /recipes/package-info with your key and ecosystem and name. You get rows with the 11 fields above. The recipe is tested against the live site every 6 hours.

Q: Can I try it without paying?

Yes. Sign up with Google, GitHub or email for a free key with 1,000 credits every month. No credit card.

Q: What if the site changes?

The health check runs every 6 hours against the live site. A failing recipe shows as failing on this page until we fix it.

One row of facts about a package from its registry's public JSON: latest version and when it was published, description, license, homepage, repository, downloads (crates.io only) and the number of dependencies. ecosystem is npm, pypi or crates; name is the package.

verifiedregistry.npmjs.orgWASM module11 fields2 unitsfresh 1 h

Run it below API reference

‹ Recipes

…json

POST api.crawl4ai.com/recipes/…

$ crawl recipe

Live · your key · counts against your quota✓ 200 OK

# Hit Run - the rows render here as a table, with the cost

Fields

11 columns on every row. null means the site does not state it.

field	type	meaning
name	string
ecosystem	string
version	string
published	string
description	string
license	string
homepage
repository	string
downloads
dependencies	integer
url	string

null means the site does not state it.

namestring

ecosystemstring

versionstring

publishedstring

descriptionstring

licensestring

homepage

repositorystring

downloads

dependenciesinteger

urlstring

How it behaves

Cost. 2 units. A failed run costs 0.

Freshness 1 h. The same input within 1 h is served from cache at 0 units.

Questions about this recipeQuestions

Short answers. The API reference has the long ones.

How do I get npm and PyPI data through an API?

Call POST /recipes/package-info with your key and ecosystem and name. You get rows with the 11 fields above. The recipe is tested against the live site every 6 hours.

What does it cost?

Can I try it without paying?

What if the site changes?

Need more from npm and PyPI?

Extra fields, higher volume, or a private copy with a freshness SLA. We build it on Enterprise.

Request a change

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For developers

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