402utils.com

{
  "properties": {
    "asOf": {
      "description": "Situation date of the source figures.",
      "format": "date",
      "type": "string"
    },
    "attestation": {
      "description": "Present only with ?attest=1. Ed25519 signature over the canonical result; verify against /.well-known/402utils-attestation.json.",
      "properties": {
        "alg": {
          "const": "Ed25519",
          "type": "string"
        },
        "payload": {
          "properties": {
            "endpoint": {
              "type": "string"
            },
            "kid": {
              "description": "Key id — matches a key in the .well-known document.",
              "type": "string"
            },
            "resultSha256": {
              "description": "SHA-256 of the canonical JSON of the result (attestation excluded).",
              "type": "string"
            },
            "ts": {
              "format": "date-time",
              "type": "string"
            }
          },
          "type": "object"
        },
        "sig": {
          "description": "base64url Ed25519 signature over the canonical JSON of payload.",
          "type": "string"
        }
      },
      "type": "object"
    },
    "country": {
      "type": "string"
    },
    "currency": {
      "description": "ISO 4217 currency code.",
      "type": "string"
    },
    "lastVerified": {
      "format": "date",
      "type": "string"
    },
    "rates": {
      "properties": {
        "parking": {
          "type": "number"
        },
        "reduced": {
          "items": {
            "type": "number"
          },
          "type": "array"
        },
        "standard": {
          "type": "number"
        },
        "superReduced": {
          "type": "number"
        }
      },
      "type": "object"
    },
    "source": {
      "format": "uri",
      "type": "string"
    }
  },
  "required": [
    "country",
    "rates",
    "currency",
    "asOf",
    "source",
    "lastVerified"
  ],
  "type": "object"
}