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POST
/
v3
/
database-validation
/
curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=ESP" \
  -F "services=esp_dni" \
  -F "vendor_data=user-1234" \
  -F "personal_number=SAMPLE-PER-12345" \
  -F "document_type=ID" \
  -F "expiration_date=1990-01-01"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "ESP",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "esp_dni",
      "service_name": "Spain - DNI/NIE verification",
      "source_data": {
        "document_type": "sample_value",
        "expiration_date": "1990-01-01",
        "first_name": "John",
        "full_name": "John Doe",
        "identification_number": "SAMPLE-ID-12345",
        "last_name": "Doe"
      },
      "validation": {
        "identification_number": "full_match"
      }
    }
  ]
}
Verifies Spanish DNI / NIE against the Dirección General de la Policía records. Didit exposes this service through POST /v3/database-validation/ so you can verify the submitted data against the authoritative source and receive normalized match results.

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Coverage

  • Coverage: —
  • Country: Spain
  • Service ID: esp_dni
  • Data domain: Identity
  • Category: NationalIDRegistry

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Inputs

FieldRequiredExample
personal_numberYesSAMPLE-PER-12345
document_typeYesID
expiration_dateYes1990-01-01
first_nameNoJohn
last_nameNoDoe
vendor_dataNouser-1234
  • Required inputs: personal_number, document_type, expiration_date
  • Optional inputs: first_name, last_name, vendor_data
  • Consent: Not required
  • Workflow availability: Available in workflow
  • Coverage: —
  • Price: $0.20 per successful query

​
Body parameters

​
issuing_state
string
default:"ESP"
required
ISO 3166-1 alpha-3 country code for this database service.Example: ESP
​
services
string
default:"esp_dni"
required
Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example: esp_dni
​
personal_number
string
default:"SAMPLE-PER-12345"
required
Country-specific personal identity number.Example: SAMPLE-PER-12345
​
document_type
string
default:"ID"
required
Document type to validate against this database service.Allowed values: ID (national ID).Example: ID
​
expiration_date
string
default:"1990-01-01"
required
expiration_date value required by this database service.Example: 1990-01-01
​
first_name
string
default:"John"
Given name to validate.Example: John
​
last_name
string
default:"Doe"
Family name to validate.Example: Doe
​
vendor_data
string
default:"user-1234"
Your stable user reference for this person, such as your internal user ID. Didit uses it to link standalone checks to the same end user and reduce duplicate-detection noise.Example: user-1234

​
Input rules & validation notes

  • Spanish DNI (8 digits + letter) or NIE (X/Y/Z + 7 digits + letter)
  • personal_number must be exactly 9 characters long.
  • personal_number must match ^(\d{8}[A-Za-z]|[XYZxyz]\d{7}[A-Za-z])$.

​
How to call it

curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=ESP" \
  -F "services=esp_dni" \
  -F "vendor_data=user-1234" \
  -F "personal_number=SAMPLE-PER-12345" \
  -F "document_type=ID" \
  -F "expiration_date=1990-01-01"

Every successful call returns HTTP 200. The outcome_code field tells you what actually happened — distinguishing, for example, a real biometric mismatch (BIOMETRIC_NO_MATCH) from a selfie that could not be read (BIOMETRIC_IMAGE_UNUSABLE). The status shown is the default feature status; your configured Partial Match / No Match actions can override it.

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Returned data

The exact fields surfaced in source_data depend on what the registry returns. The generated example for esp_dni currently documents this normalized shape:
  • document_type
  • expiration_date
  • first_name
  • full_name
  • identification_number
  • last_name

​
Pricing & SLAs

Spain - DNI/NIE verification queries are billed only when Didit receives a conclusive result from the validation source.
  • Per-call price: $0.20 USD.
  • Billing: per successful query. You are not charged when the registry is unreachable, when required fields are missing, or when the request is rejected before reaching the source.
  • Latency: typical p95 < 2 s.
  • Availability: 99.9% per quarter on Didit’s side; downstream source availability varies by country and dataset.

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