Check whether the CapSkip desktop app is running and reachable. Call this first when a solve fails unexpectedly, to tell "CapSkip is not running" apart from "the sitekey was wrong". Takes no arguments.

Read the text out of a distorted-text captcha image. Returns the recognized text, which you type into the page's captcha field. Proxies are not supported for image captchas.

Solve a Google reCAPTCHA v2 or v3 widget, including invisible and Enterprise variants. Returns a token to place in the page's "g-recaptcha-response" field before submitting the form. Read the sitekey from the page first — a guessed sitekey fails. Note that reCAPTCHA v3 returns a score assigned by Google; no solver can raise it.

Solve a Cloudflare Turnstile widget or interstitial challenge page. Returns a token for the page's "cf-turnstile-response" field. IMPORTANT: submit the token using the returned userAgent — Cloudflare rejects a token replayed under a different User-Agent. For an interstitial challenge page, also pass cdata and pagedata read from the page.

Solve a GeeTest v3 slide-puzzle captcha. Returns geetest_challenge, geetest_validate, and geetest_seccode to post back exactly as the site's own front-end would. IMPORTANT: the challenge value is single-use and expires in roughly a minute, so fetch gt and challenge from the page immediately before calling. A stale challenge is the most common failure.