chrombot-x402-qf0bnhmrg-eval-engine.vercel.app provides a minimal health-check API for the x402 chrombot evaluation engine. It exposes a single /ping endpoint that reports server liveness, making it ideal for uptime checks, load‑balancer or orchestrator health probes, and CI preflight tests. At a fixed, very low cost per call ($0.01), it supports frequent lightweight monitoring and automation workflows.