Puppeteer Captcha Solver

npm install puppeteer axios
# Recommended companion:
npm install puppeteer-extra puppeteer-extra-plugin-stealth

const puppeteer = require('puppeteer-extra');
const StealthPlugin = require('puppeteer-extra-plugin-stealth');
const axios = require('axios');

puppeteer.use(StealthPlugin());

const API_KEY  = 'ck_your_api_key_here';
const PAGE_URL = 'https://example.com/register';

async function solveRecaptchaV2(sitekey, pageUrl) {
    const { data } = await axios.post('https://captchakings.com/api', {
        api_key: API_KEY,
        captcha_type: 'recaptcha_v2',
        sitekey: sitekey,
        page_url: pageUrl
    });
    if (!data.token) throw new Error('Solve failed: ' + JSON.stringify(data));
    return data.token;   // valid g-recaptcha-response, ~3s average
}

(async () => {
    const browser = await puppeteer.launch({ headless: 'new' });
    const page = await browser.newPage();
    await page.goto(PAGE_URL, { waitUntil: 'networkidle2' });

    // 1. Extract the sitekey
    const sitekey = await page.$eval('[data-sitekey]', el => el.dataset.sitekey);

    // 2. Solve server-side
    const token = await solveRecaptchaV2(sitekey, PAGE_URL);

    // 3. Inject + submit
    await page.evaluate((t) => {
        document.getElementById('g-recaptcha-response').innerHTML = t;
    }, token);
    await Promise.all([
        page.waitForNavigation({ waitUntil: 'networkidle2' }),
        page.click('button[type=submit]')
    ]);

    console.log('Passed:', page.url());
    await browser.close();
})();

const el = await page.$('#captcha-img');
await el.screenshot({ path: 'captcha.png' });

const FormData = require('form-data');
const fs = require('fs');
const form = new FormData();
form.append('captcha', fs.createReadStream('captcha.png'));
form.append('api_key', API_KEY);

const { data } = await axios.post('https://captchakings.com/api/process.php', form, {
    headers: form.getHeaders()
});
console.log('Answer:', data.prediction, '| confidence:', data.confidence);