es_vehicle_registration

Spanish vehicle registration certificate

Spanish DGT vehicle registration certificate (EU model): plate, VIN, make, model, holder and first registration date.

Category: Vehicles
Country: Spain
Extracted fields: 9 fields
Cost: 1 credit

es_vehicle_registrationspecimen

Plate number
First registration date
Holder name
Holder ID number
Address
Make
Model
Vin
Issue date

What it checks

National identifiers. Official checksum or format of the number (NIF, CPF, CURP, RUT, SSN…).es_nif
Holder. Name, number or date of birth match what you expect.

Extracted fields

Plate numberplate_number
First registration datefirst_registration_date
Holder nameholder_name
Holder ID numberholder_id
Addressaddress
Makemake
Modelmodel
Vinvin
Issue dateissue_date

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "es_vehicle_registration",
    "checks": {
      "holder": {
        "full_name": "Carmen Especimen Ruiz"
      }
    },
    "storage": "none"
  }'

Sample response

Fictitious data. Shortened response.

200 OK · application/json

{
  "id": "an_01J9Z3K8QW4T6Y2B7N5M1R0PXC",
  "object": "analysis",
  "status": "completed",
  "livemode": false,
  "document": {
    "type": "es_vehicle_registration",
    "label": "Spanish vehicle registration certificate",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "es_vehicle_registration"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Spanish vehicle registration certificate."
      }
    ]
  },
  "fields": {
    "plate_number": {
      "value": "1234 ABC",
      "confidence": 0.99,
      "validated": true
    },
    "first_registration_date": {
      "value": "2022-03-15",
      "confidence": 0.98,
      "validated": null
    },
    "holder_name": {
      "value": "JUAN ESPAÑOL ESPAÑOL",
      "confidence": 0.97,
      "validated": null
    },
    "holder_id": {
      "value": "99999999R",
      "confidence": 0.96,
      "validated": null
    },
    "make": {
      "value": "SEAT",
      "confidence": 0.99,
      "validated": null
    },
    "model": {
      "value": "IBIZA",
      "confidence": 0.98,
      "validated": null
    },
    "vin": {
      "value": "VSSZZZKJZNR000001",
      "confidence": 0.97,
      "validated": null
    },
    "issue_date": {
      "value": "2022-03-15",
      "confidence": 0.96,
      "validated": null
    }
  },
  "checks": [
    {
      "code": "id_number",
      "passed": true,
      "message": "id_number"
    }
  ],
  "warnings": [],
  "storage": {
    "mode": "none",
    "file_deleted_at": "2026-09-29T10:00:02Z",
    "expires_at": null
  },
  "usage": {
    "credits": 1,
    "pages": 1
  }
}

FAQ

Does Constaia prove the document is authentic?

No. It checks the type, data consistency and your rules, and flags signals such as a possible edit or a screen photo. That does not prove authenticity.

Is a copy of the document kept?

No, unless you ask for it. With storage "none" (the default) the file is deleted when the analysis ends.

And for the record…

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