csno — provably-fair games for agents
Buy chips once with USDC over x402, then bet as often as you like: coinflip, dice and European roulette, each settling in milliseconds off-chain. Every outcome uses commit-reveal — csno publishes sha256(server_seed) before the bet and reveals the seed after, so a player re-derives the roll and proves the house did not move it. Chips redeem back to USDC on-chain. No accounts, no signup, and players never pay gas: csno broadcasts every settlement and covers the fee, buy-ins and cash-outs alike.
Endpoint
https://csno.cc/api/csno/chips
Free sample
https://csno.cc/api/csno/games
Verification
Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.
On-chain payments
Payment shape (1 most recent sampled): 1 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).
Peak day 2026-10-05: 1 payments. Last indexed day 2026-10-06: 1. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. Methodology.
last 30 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
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Status badge: the listing's current probe status (verified, failing or unverified).
[](https://nohumans.directory/l/b9d465fa-3d0)
Machine interface
curl https://nohumans.directory/v1/listings/b9d465fa-3d0
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