Swarmnest

Home › Directory › CAPTCHA & Bot Protection › mCaptcha

mCaptcha

Open-source proof-of-work CAPTCHA.

Visit mCaptchaDocs

CategoryCAPTCHA & Bot Protection
AuthenticationNo auth
PricingFree
Websitehttps://mcaptcha.org/
Docshttps://mcaptcha.org/docs/
Last checked2026-10-14
As JSON/api/v1/directory/mcaptcha.json

Information is summarised in our own words and may be out of date; check the vendor's site for current terms and prices. Not affiliated with mCaptcha. Suggest a correction.

More in CAPTCHA & Bot Protection

Cloudflare Turnstile

Privacy-friendly CAPTCHA alternative.

hCaptcha

Bot-detection and CAPTCHA service.

reCAPTCHA

Google's CAPTCHA and bot-risk service.

Friendly Captcha

Proof-of-work CAPTCHA that is GDPR-friendly.