Backtest Engine
The historical page routed buyers to the retired ACP host and displayed an obsolete payment receiver. Those current-authority claims are removed.
Current discovery
https://mcp-x402.onrender.com/mcp
Query live discovery/tool contracts for the current route inventory instead of relying on a hard-coded route list or cached price.
Current x402 payment identity
Base mainnet eip155:8453 · USDC · canonical SqueezeOS payTo 0x5bbd32e0478e49a7540ef2d760e0b0f9aa6328b2.
Resolve exact terms from the target’s fresh PAYMENT-REQUIRED challenge. Caller controls spending. A challenge or authorization is not settlement proof.