Codewars Scraper

Extract kata challenges, difficulty ranks, completion stats, and language availability from Codewars. Built on spider-browser .

Get started Docs

target
codewars.com: success rate
99.9%: latency
~4ms

Quick start

Extract data in minutes.

codewars-scraper.ts

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://www.codewars.com/kata/search/javascript?q=&order_by=popularity+desc");
await page.content(8000);

const data = await page.evaluate(`(() => {
  const katas = [];
  document.querySelectorAll("[class*='kata-row'], .list-item").forEach(el => {
    const name = el.querySelector("a[href*='/kata/']")?.textContent?.trim();
    const rank = el.querySelector("[class*='rank']")?.textContent?.trim();
    const completions = el.querySelector("[class*='completed']")?.textContent?.trim();
    const tags = [...el.querySelectorAll("[class*='tag'] span")].map(t => t.textContent?.trim());
    if (name) katas.push({ name, rank, completions, tags });
  });
  return JSON.stringify({ total: katas.length, katas: katas.slice(0, 15) });
})()`);

console.log(JSON.parse(data));
await spider.close();

ready to run · spider-browser · TypeScript

Fetch API

One endpoint for codewars.com.

Structured JSON from codewars.com with a single POST. AI-resolved selectors, cached on the first call.

POST /fetch/codewars.com/

Kata nameRank (kyu)CategoryLanguagesTotal completionsStars

Try it Fetch docs

cURL

curl -X POST https://api.spider.cloud/fetch/codewars.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"return_format": "json"}'

Python

import requests

resp = requests.post(
    "https://api.spider.cloud/fetch/codewars.com/",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json",
    },
    json={"return_format": "json"},
)
print(resp.json())

Node.js

const resp = await fetch("https://api.spider.cloud/fetch/codewars.com/", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ return_format: "json" }),
});
const data = await resp.json();
console.log(data);

Extraction