{
  "endpoint": "GET /api/v1/resolve?url=<ad destination URL>",
  "returns": "decision: verified | unsealed | unverifiable | expired | absent, each with a reason",
  "access": {
    "cost": "free",
    "authentication": "none",
    "rate_limit": "abuse control only"
  },
  "engine": "0.4.0"
}