Prosopo Procaptcha

Open-source, frictionless CAPTCHA and bot defense — a privacy-focused alternative to reCAPTCHA and hCaptcha.

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Prosopo Procaptcha is an open-source, frictionless CAPTCHA and bot-defense system positioned as a privacy-focused, self-hostable alternative to reCAPTCHA and hCaptcha, with invisible verification and proof-of-work challenges. It's for site owners who need bot and spam defense without subjecting visitors to third-party tracking.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Prosopo Procaptcha - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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