CAPTCHA.eu

Invisible captcha hosted in Austria with WACA accessibility certification and per-site quotas

Vienna, Austria · Paid
A European alternative to reCAPTCHA hCaptcha Cloudflare Turnstile

About CAPTCHA.eu

CAPTCHA.eu is a bot-protection service operated from Austria, with all data processed and stored under Austrian law. The product offers an invisible background-validation mode and a single-click confirmation widget — no image puzzles, no cookies, no third-party tracking. Plans are sold per site and per request volume: Starter (€96.12/year, 1 site, 1,000 requests/month), Growth (€387.72/year, 5 sites, 10,000/month) and Advanced (€1,942.92/year, 10 sites, 100,000/month), plus custom plans and a free trial of 100 requests. The service holds the WACA Silver accessibility badge issued by TÜV Austria and lists customers including ÖBB, A1 and Bauer Media Group.

Quick facts

Pricing model Paid
Free trial Yes
Open source
Self-hostable No
Public API Yes
Target audience B2B
Company size fit All
DPA available Yes
Data stored in EU Yes
Last verified by eubuilt.eu on 27 Apr 2026 — re-checks every 6 months Flag listing → Read our criteria →