Vellium & Co

Directory › Developer tools and utilities › Captcha verify

Captcha verify

Validate a Cloudflare Turnstile, Google reCAPTCHA, or hCaptcha token server-side. You pass your OWN provider secret plus the token from the client; we relay to the provider's siteverify endpoint (never logged) and return the normalized verd

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
199 ms
Price
$0.002 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
5
Category
Developer tools and utilities
Address
https://agent402.tools/api/captcha-verify

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/14db80c42e9b.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].