Pricing

$10.00 / 1,000 download stats checks

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NPM Download Stats Tracker — Trend by Package

Try for free

Get download counts for one or more npm packages over a chosen period, plus percent change versus the prior period of the same length. For tracking adoption trends, not new releases.

Pricing

$10.00 / 1,000 download stats checks

Rating

0.0

(0)

Developer

Timothy Kelvin

Actor stats

Bookmarked

Total users

Monthly active users

3 hours ago

Last modified

Input

{
  "packages": ["react", "vue", "svelte"],
  "daysBack": 7
}

Field	Type	Description
`packages`	array of strings	npm package names to check, e.g. `"react"`, `"@angular/core"`. At least one required.
`daysBack`	number	Length of the period to measure, and also the length of the prior period it's compared against. Default `7`, max `365`.

Output

One record per package:

{
  "package": "react",
  "currentPeriodDownloads": 163083190,
  "currentPeriodStart": "2026-08-03",
  "currentPeriodEnd": "2026-08-09",
  "previousPeriodDownloads": 158200412,
  "previousPeriodStart": "2026-07-27",
  "previousPeriodEnd": "2026-08-02",
  "percentChange": 3.09
}

currentPeriodDownloads is null for a package name npm doesn't recognize (typo, unpublished, or scoped name missing its @scope/ prefix) — check the package name if you see this.

Note: npm's own download-count pipeline occasionally reports 0 for an isolated day due to upstream CDN log-processing gaps, a known limitation of the source data itself, not this actor. A single-day dip to zero within an otherwise normal trend is that artifact, not a real usage drop.

A request is billed once regardless of how many packages are checked.

How it works

Direct calls to the official npm registry downloads API (api.npmjs.org) — no proxy, no key, no scraping.

Pricing note

Billed per request, not per package returned — one charge whether you check 1 package or several.

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