Attest

Grade any x402 or MPP endpoint before your agent pays it. Think VirusTotal or SSL Labs, but for agent payment endpoints. Someone pastes in an x402 URL, you ping it, and you show them everything before they point an agent (and real money) at it: does it return a valid 402, what's the actual price and token and network, does it respond, is the TLS clean, how fast is it, is the domain known or brand new. The first anti-scam layer for the agent economy.