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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=THA" \
  -F "services=tha_national_id" \
  -F "vendor_data=user-1234" \
  -F "consent=true" \
  -F "first_name=John" \
  -F "last_name=Doe" \
  -F "date_of_birth=1990-01-01" \
  -F "national_id=1111111111111"

{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "THA",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "tha_national_id",
      "service_name": "Thailand National ID",
      "source_data": {
        "address_match_score": "1.000",
        "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 input data against government agency sourced National ID. 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: ~ 90%
  • Country: Thailand
  • Service ID: tha_national_id
  • Data domain: Identity
  • Category: NationalIDRegistry

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Inputs

FieldRequiredExample
first_nameYesJohn
last_nameYesDoe
date_of_birthYes1990-01-01
national_idYes1111111111111
address.street_1No123 Sample Street
address.street_2NoUnit 4
address.cityNoSample City
address.regionNoSample State
address.postal_codeNo10001
vendor_dataNouser-1234
  • Required inputs: first_name, last_name, date_of_birth, national_id
  • Optional inputs: address.street_1, address.street_2, address.city, address.region, address.postal_code, vendor_data
  • Consent: Required
  • Workflow availability: Available in workflow
  • Coverage: ~ 90%
  • Price: $0.16 per successful query

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Body parameters

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issuing_state
string
default:"THA"
required
ISO 3166-1 alpha-3 country code for this database service.Example: THA
​
services
string
default:"tha_national_id"
required
Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example: tha_national_id
​
consent
boolean
default:"true"
required
Explicit end-user consent for this service.Example: true
​
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
​
national_id
string
default:"1111111111111"
required
National identity number for this service.Example: 1111111111111
​
address
object
Structured residential address object. Use street_1, street_2, city, region, postal_code, and country. A complete legacy address string is still accepted but not recommended.Example: {"street_1":"123 Sample Street","street_2":"Unit 4","city":"Sample City","region":"Sample State","postal_code":"10001","country":"US"}
​
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

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Input rules & validation notes

  • address is optional for this service. You can send one complete address string and Didit will split it into structured address elements when possible, or you can send the structured fields explicitly.
  • national_id must contain digits only; remove spaces, hyphens, and punctuation before sending the request.
  • national_id must be exactly 13 characters long.
  • For address services, send structured address fields instead of a single address string when possible.
  • address.street_1 is the street address, including street number and street type.
  • address.street_2 is apartment, unit, building, floor, or extra address line. Send it only when you have it.
  • address.city is city, suburb, district, locality, or neighborhood.
  • address.region is state, province, region, or town.
  • address.postal_code is postcode or postal code.
  • Address-based database services require at least street address and postal code; requests rejected before source lookup are not charged.

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How to call it

curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=THA" \
  -F "services=tha_national_id" \
  -F "vendor_data=user-1234" \
  -F "consent=true" \
  -F "first_name=John" \
  -F "last_name=Doe" \
  -F "date_of_birth=1990-01-01" \
  -F "national_id=1111111111111"

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 tha_national_id currently documents this normalized shape:
  • address_match_score
  • date_of_birth
  • identification_number
  • name_match_score

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Pricing & SLAs

Thailand National ID queries are billed only when Didit receives a conclusive result from the validation source.
  • Per-call price: $0.16 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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