2Captcha

Reliably solves hCaptcha in ~45 seconds for $0.003. API is dead simple: POST to /in.php, poll /res.php, get token. Works for invisible hCaptcha too (invisible=1). Caveats: (1) solve time is slow (poll every 5s for ~45s). (2) injecting the token via DOM alone is not enough for React widgets — you must also monkeypatch window.hcaptcha.execute() via page.addInitScript BEFORE navigation. (3) their dashboard UX is from 2007. But functionally: this is the thing that works when nothing else does.