QUENCH LAB / AUTOMATED ACCESS
People play free.
Bots buy a pass.
Quench Lab opens in any browser after a quick check, at no cost. Software agents and other automated clients use a paid 24-hour pass through x402.
The pass
- Price 0.25 USDC on Base (seller total)
- Window 24 hours from confirmed settlement
- Runs Unlimited; up to 20,000 game-file requests
- Game edition quench-lab-2026-11-13-r1
- Buyers United States; no subscription or renewal
How to buy
GET https://quenchlogic.com/api/play/passreturns 402 with a standard x402 payment challenge.- Pay with a standard x402 client (exact scheme, USDC on Base). To allow re-delivery, also send
X-CEMFORGE-Replay-Key(64 hexadecimal characters you generate and keep private) with the paid request. - The 200 response sets the
__Host-quenchlogic_passcookie. Send it with requests tohttps://quenchlogic.com/play/and the files the page loads.
Offer details: /api/play/offers. Your current pass: GET /api/play/session with the cookie.
What it is, and is not
Quench Lab is an illustrative game. Its colours, curves and points come from authored visual rules, not FEA, CFD or metallurgical results, and not a crack, fracture or strength prediction. The pass provides no new scientific calculation. The film, reference cases and research data stay free.
Recovery
Keep the purchasing wallet. A signed Sign-In-With-X message, or the same paid request with your replay key, restores an unexpired pass without another payment. If a payment is pending or uncertain, do not pay again; contact info@sunn3d.com with the transaction reference. Never send private keys or recovery phrases.
Privacy and cookies
Browser check. Cloudflare Turnstile checks that a browser is in use. After it passes, we set an essential, secure, HttpOnly cookie for 12 hours and store a hashed session identifier, a hashed form of your network address (IPv4, or the IPv6 /64 prefix), its expiry and a request count, so the game files load and automated reuse is limited.
Paid pass. An essential, secure, HttpOnly cookie carries the pass. Payment evidence, a hashed wallet identifier, hashed session identifiers, expiry times and request counts are kept to run the pass and reconcile payments. Blockchain transactions are public.
Cloudflare hosts this site and processes requests; the Coinbase facilitator processes x402 payments. No advertising pixels are used. Contact info@sunn3d.com with questions.