es_driving_license

Spanish driving license

Extract categories and expiry from a Spanish driving license and validate the NIF.

Category: Identity
Country: Spain
Extracted fields: 7 fields
Cost: 1 credit

es_driving_licensespecimen

Number
First name
Last name
Date of birth
Issue date
Expiry date
Categories

The Spanish driving license uses the DNI number as license number. Constaia validates the letter, extracts the categories and checks the expiry date.

Use require_fields: ["categories"] when you need a specific category and compare it in your code.

What it checks

NIF/NIE check letter. The check character is recomputed (mod 23).
Validity. Not expired on the reference date.
Holder. Name, number or date of birth match what you expect.
Age. Minimum or maximum age from the date of birth.

Extracted fields

Numbernumber
First namefirst_name
Last namelast_name
Date of birthbirth_date
Issue dateissue_date
Expiry dateexpiry_date
Categoriescategories

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "es_driving_license",
    "checks": {
      "not_expired": true,
      "require_fields": [
        "categories"
      ]
    },
    "storage": "none"
  }'

Sample response

Fictitious data. Shortened response.

200 OK · application/json

{
  "id": "an_01J9Z3K8QW4T6Y2B7N5M1R0PXC",
  "object": "analysis",
  "status": "completed",
  "livemode": false,
  "document": {
    "type": "es_driving_license",
    "label": "Spanish driving license",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "es_driving_license"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Spanish driving license."
      }
    ]
  },
  "fields": {
    "number": {
      "value": "12345678Z",
      "confidence": 0.99,
      "validated": true
    },
    "names": {
      "value": "MARÍA GARCÍA LÓPEZ",
      "confidence": 0.98,
      "validated": null
    },
    "birth_date": {
      "value": "1990-04-18",
      "confidence": 0.97,
      "validated": null
    },
    "expiry_date": {
      "value": "2033-05-02",
      "confidence": 0.96,
      "validated": null
    },
    "categories": {
      "value": "AM, A1, B",
      "confidence": 0.99,
      "validated": null
    }
  },
  "checks": [
    {
      "code": "nif_check_digit",
      "passed": true,
      "message": "The NIF check letter is correct."
    }
  ],
  "warnings": [],
  "storage": {
    "mode": "none",
    "file_deleted_at": "2026-09-29T10:00:02Z",
    "expires_at": null
  },
  "usage": {
    "credits": 1,
    "pages": 2
  }
}

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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