// challenge
what is mtcaptcha?
a captcha-widget challenge; used by mtcaptcha; mints the mtcaptcha-verifiedtoken, verified at service.mtcaptcha.com token; escalation: checkbox / noscript image challenge → harder image variants on a suspicious session. gdpr/privacy-focused recaptcha alternative; checkbox + image challenge minting a verified token. lower prevalence, common in eu compliance-sensitive deployments.
source capture undated
in the benchmark
mtcaptcha is tracked as part of the challenge taxonomy. see how tracked tools score against it on the capability matrix.