Pricing

$10.00 / 1,000 download stats checks

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Crates.io Download Stats Tracker — Trend by Crate

Try for free

Get download counts for one or more Rust crates 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

2 hours ago

Last modified

Input

{
  "crates": ["serde", "tokio", "clap"],
  "daysBack": 7
}

Field	Type	Description
`crates`	array of strings	Rust crate names to check, e.g. `"serde"`, `"tokio"`. 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 `45`.

Output

One record per crate:

{
  "crate": "serde",
  "currentPeriodDownloads": 3690672,
  "currentPeriodStart": "2026-08-09",
  "currentPeriodEnd": "2026-08-16",
  "previousPeriodDownloads": 3702415,
  "previousPeriodStart": "2026-08-01",
  "previousPeriodEnd": "2026-08-08",
  "percentChange": -0.32
}

currentPeriodDownloads is null for a crate name that doesn't exist (typo or unpublished). crates.io's public stats retain roughly the last 90 days of history.

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

How it works

Direct calls to the official crates.io API (crates.io/api/v1) — no proxy, no key, no scraping.

Pricing note

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

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