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_tax_registration" \
  -F "vendor_data=user-1234" \
  -F "first_name=John" \
  -F "last_name=Doe" \
  -F "date_of_birth=1990-01-01" \
  -F "tax_number=11111111111"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "BRA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "bra_tax_registration",
      "service_name": "Brazil Tax Registration (CPF/CNPJ)",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "identification_number": "SAMPLE-ID-12345",
        "name_match_score": "1.000",
        "verifications": {
          "date_of_birth": true,
          "full_name": true,
          "identification_number": true
        }
      },
      "validation": {
        "date_of_birth": "full_match",
        "full_name": "full_match",
        "identification_number": "full_match"
      }
    }
  ]
}
Verifies against the CPF/CNPJ database. 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: ~ 100%
  • Country: Brazil
  • Service ID: bra_tax_registration
  • Data domain: Financial
  • Category: TaxRegistry

​
Inputs

FieldRequiredExample
first_nameYesJohn
last_nameYesDoe
date_of_birthYes1990-01-01
tax_numberYes11111111111
vendor_dataNouser-1234
  • Required inputs: first_name, last_name, date_of_birth, tax_number
  • Optional inputs: vendor_data
  • Consent: Not required
  • Workflow availability: Available in workflow
  • Coverage: ~ 100%
  • Price: $0.08 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_tax_registration"
required
Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example: bra_tax_registration
​
first_name
string
default:"John"
required
Given name to validate.Example: John
​
last_name
string
default:"Doe"
required
Family name to validate.Example: Doe
​
date_of_birth
string
default:"1990-01-01"
required
Date of birth in YYYY-MM-DD format.Example: 1990-01-01
​
tax_number
string
default:"11111111111"
required
Tax or fiscal identification number.Example: 11111111111
​
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

  • 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_tax_registration" \
  -F "vendor_data=user-1234" \
  -F "first_name=John" \
  -F "last_name=Doe" \
  -F "date_of_birth=1990-01-01" \
  -F "tax_number=11111111111"

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.

​
Returned data

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

​
Pricing & SLAs

Brazil Tax Registration (CPF/CNPJ) queries are billed only when Didit receives a conclusive result from the validation source.
  • Per-call price: $0.08 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