Skip to main content
POST
/
v3
/
database-validation
curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=BRA" \
  -F "services=bra_cnh_facial_qrcode" \
  -F "consent=true" \
  -F "tax_number=11111111111" \
  -F "selfie=@./selfie.jpg" \
  -F "cnh_qr_code_image=sample_value"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "BRA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "bra_cnh_facial_qrcode",
      "service_name": "Brazil - CNH QR code + face match (Datavalid)",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "identification_number": "SAMPLE-ID-12345",
        "last_name": "Doe"
      },
      "validation": {
        "identification_number": "full_match"
      }
    }
  ]
}

Documentation Index

Fetch the complete documentation index at: https://docs.didit.me/llms.txt

Use this file to discover all available pages before exploring further.

SERPRO Datavalid v4 pf-facial-qrcode — decodes the QR code printed on Brazilian CNH driver licences (physical or digital, issued since May 2017), validates CPF + name + date of birth against Receita Federal, and matches the live selfie against the CNH portrait stored at Senatran. 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.

​
Coverage

  • Coverage: —
  • Country: Brazil
  • Service ID: bra_cnh_facial_qrcode
  • Data domain: Biometric
  • Category: DriverLicence

​
Inputs

FieldRequiredExample
tax_numberYes11111111111
selfieYes@./selfie.jpg
cnh_qr_code_imageYessample_value
first_nameNoJohn
last_nameNoDoe
date_of_birthNo1990-01-01
  • Required inputs: tax_number, selfie, cnh_qr_code_image
  • Optional inputs: first_name, last_name, date_of_birth
  • Consent: Required
  • Workflow availability: Available in workflow
  • Coverage: —
  • Price: $0.50 per successful query

​
Body parameters

​
issuing_state
string
default:"BRA"
required
ISO 3166-1 alpha-3 country code for this database service.Example: BRA
​
services
string
default:"bra_cnh_facial_qrcode"
required
Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example: bra_cnh_facial_qrcode
​
consent
boolean
default:"true"
required
Explicit end-user consent for this service.Example: true
​
tax_number
string
default:"11111111111"
required
Tax or fiscal identification number.Example: 11111111111
​
selfie
file
required
Selfie image file to upload for biometric database validation. Accepted formats: JPEG, PNG, or WebP.Example: @./selfie.jpg
​
cnh_qr_code_image
string
default:"sample_value"
required
cnh_qr_code_image value required by this database service.Example: sample_value
​
first_name
string
default:"John"
Given name to validate.Example: John
​
last_name
string
default:"Doe"
Family name to validate.Example: Doe
​
date_of_birth
string
default:"1990-01-01"
Date of birth in YYYY-MM-DD format.Example: 1990-01-01

​
Input rules & validation notes

  • Brazilian CPF (exactly 11 digits)
  • tax_number must contain digits only; remove spaces, hyphens, and punctuation before sending the request.
  • tax_number must be exactly 11 characters long.

​
How to call it

curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=BRA" \
  -F "services=bra_cnh_facial_qrcode" \
  -F "consent=true" \
  -F "tax_number=11111111111" \
  -F "selfie=@./selfie.jpg" \
  -F "cnh_qr_code_image=sample_value"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "BRA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "bra_cnh_facial_qrcode",
      "service_name": "Brazil - CNH QR code + face match (Datavalid)",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "identification_number": "SAMPLE-ID-12345",
        "last_name": "Doe"
      },
      "validation": {
        "identification_number": "full_match"
      }
    }
  ]
}

​
Returned data

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

​
Pricing & SLAs

Brazil - CNH QR code + face match (Datavalid) queries are billed only when Didit receives a conclusive result from the validation source.
  • Per-call price: $0.50 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.

​
Continue reading