Relayer (testnet note)
This submission targets Base Sepolia only. The 1Shot mainnet relayer prize requires mainnet 7710 relay.
Why no live relayer here
Clearance402 x402 payments run via @x402/fetch on Base Sepolia using the x402.org testnet facilitator. The HackQuest 1Shot track requires the permissionless mainnet relayer and 7702 upgrades — excluded from this testnet build.
Primary cook-off tracks covered: x402 + ERC-7710, Agent, A2A, Venice AI — with MetaMask permissions, live probes, and audit evidence on /payment-lab and /audit.