api.invoket.com

{
  "properties": {
    "data": {
      "properties": {
        "critair_class": {
          "description": "Computed Crit'Air sticker class: '0', '1'..'5' or 'non_classe' — 'non_classe' is a successful, billed answer (too old to qualify), never an error",
          "type": "string"
        },
        "derivation": {
          "description": "How the class was obtained: which input path was used (via), the effective Euro norm and the fuel column retained — makes the computation auditable. On the 'first_registration' path the Euro norm is INFERRED from the date against the norm mandated for new registrations at that time (euro6 from 2015-09-01 for m1, 2016-09-01 for n1): a vehicle may have been type-approved under an earlier norm, and the sticker class is identical across the norms that share it",
          "properties": {
            "euro_norm": {
              "type": "string"
            },
            "fuel": {
              "type": "string"
            },
            "via": {
              "type": "string"
            }
          },
          "required": [
            "fuel",
            "via"
          ],
          "type": "object"
        },
        "euro_norm": {
          "type": "string"
        },
        "first_registration": {
          "type": "string"
        },
        "fuel": {
          "type": "string"
        },
        "notes": {
          "type": "string"
        },
        "regulation": {
          "description": "Reference to the regulatory classification table and the date it was last verified",
          "properties": {
            "as_of": {
              "type": "string"
            },
            "reference": {
              "type": "string"
            }
          },
          "required": [
            "as_of",
            "reference"
          ],
          "type": "object"
        },
        "vehicle_class": {
          "type": "string"
        },
        "zfe_restrictions": {
          "description": "Low-emission zones (ZFE) that currently ban this class, each with its enforcement start date; an empty list means no modelled ZFE restricts the class",
          "items": {
            "properties": {
              "area": {
                "type": "string"
              },
              "since": {
                "type": "string"
              },
              "zone_id": {
                "type": "string"
              },
              "zone_name": {
                "type": "string"
              }
            },
            "required": [
              "area",
              "since",
              "zone_id",
              "zone_name"
            ],
            "type": "object"
          },
          "type": "array"
        }
      },
      "required": [
        "critair_class",
        "derivation",
        "fuel",
        "notes",
        "regulation",
        "vehicle_class",
        "zfe_restrictions"
      ],
      "type": "object"
    },
    "provenance": {
      "properties": {
        "fetched_at": {
          "type": "string"
        },
        "freshness": {
          "properties": {
            "as_of": {
              "type": "string"
            },
            "kind": {
              "type": "string"
            }
          },
          "required": [
            "as_of",
            "kind"
          ],
          "type": "object"
        },
        "source": {
          "type": "string"
        }
      },
      "required": [
        "fetched_at",
        "freshness",
        "source"
      ],
      "type": "object"
    }
  },
  "required": [
    "data",
    "provenance"
  ],
  "type": "object"
}