crates.io Scraper
Spider read crates.io in 156 ms in a headless browser and returned 292 lines of clean markdown, including the section "Most Downloaded".
3. unpopped A vendor-neutral kernel generator: the backend-agnostic IR, plan, transform pipeline, contracts and dispatch artifacts, plus the `Backend` and `Compiler` traits a target implements. Ships a portable-C99 reference backend and a CPU oracle, so it builds and self-tests with no device, no driver, and no vendor dependency. Device backends live under their own vendor identity and depend on this crate — the CUDA emitter, its NVRTC compiler and the Fuel synthesizer live in `baracuda-cuda-emit`. Pre-1.0 and moving; pin exact versions. version0.1.04. change-capsule Isolated Git worktree attempts for coding agents, sealed into portable verifiable receipts version0.1.05. bsd-abi C ABI shim exporting the libbsd symbol set on top of the bsd crate version0.1.16. bsd-abi-ctor The setproctitle constructor, shipped separately from the libbsd shared object version0.1.17. bsd Safe Rust implementations of the BSD libc extensions provided by libbsd version0.1.18. linkboy Firmware and link-update tool for the retinue family: carries new firmware over the link, the way linkboys carried light. version0.0.19. signalman The radio-management application of the retinue family: the signal box for a household's radios. version0.0.110. postilion Shared radio-host library for the retinue family: the riding position inside the team. version0.0.1## Most Downloaded1. hashbrown A Rust port of Google's SwissTable hash map 2.1B downloads2. syn Parser for Rust source code 2.1B downloads3. getrandom A small cross-platform library for retrieving random data from system source 1.7B downloads4. bitflags A macro to generate structures which behave like bitflags. 1.6B downloads5. rand_core Core random number generation traits and tools for implementation. 1.5B downloads6. rand Random number generators and other randomness functionality. 1.5B downloads7. libc Raw FFI bindings to platform libraries like libc. 1.5B downloads- Open crates.io in a real browser
- Wait for the page to finish rendering
The same call, in code.
The capture above came back as markdown. These examples add a key, so you get browser rendering, proxies, and concurrency on crates.io.
import { SpiderBrowser } from "spider-browser";
const spider = new SpiderBrowser({
apiKey: process.env.SPIDER_API_KEY!,
stealth: 2,
});
await spider.connect();
const page = spider.page!;
await page.goto("https://crates.io/");
// Wait for the page to finish rendering
// No selectors, no schema. Spider reads the page and names the fields.
const data = await page.scrape();
console.log(data);
await spider.close();import { SpiderBrowser } from "spider-browser";
const spider = new SpiderBrowser({
apiKey: process.env.SPIDER_API_KEY!,
});
await spider.connect();
const page = spider.page!;
await page.goto("https://crates.io/crates/serde");
await page.content(8000);
const data = await page.evaluate(`(() => {
const name = document.querySelector("h1")?.textContent?.trim();
const version = document.querySelector("[class*='version'] [class*='num']")?.textContent?.trim();
const downloads = document.querySelector("[class*='downloads'] [class*='num']")?.textContent?.trim();
const desc = document.querySelector("[class*='description']")?.textContent?.trim();
const deps = [...document.querySelectorAll("[class*='dependency'] a")].map(a => a.textContent?.trim());
return JSON.stringify({ name, version, downloads, desc, deps: deps.slice(0, 10) });
})()`);
console.log(JSON.parse(data));
await spider.close();Ready for volume? Get an API key →
Fields you can pull.
Spider names these from the page. The capture above came back as markdown; the same
call with return_format: "json" returns them as keys.
What crates.io costs to scrape.
The capture above cost $0.000212 to fetch. Pricing is $1 per GB of pre-transformation bandwidth plus $0.001 per CPU minute, so a page like this one lands at a fraction of a cent. Failed requests are billed at $0.
- Free balance on signup
- No card required to test
- Balance never expires
Run it keyless, no account
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Start scraping crates.io.
You already have the call. A key raises the rate limit and turns on browser rendering, proxies, and concurrency. Balance never expires, and top-ups go through secure checkout.