curl -X POST "https://verification.didit.me/v3/database-validation/" \
-H "x-api-key: YOUR_API_KEY" \
-F "issuing_state=CHN" \
-F "services=chn_passport_verification" \
-F "vendor_data=user-1234" \
-F "consent=true" \
-F "full_name=王新伟" \
-F "date_of_birth=1990-01-01" \
-F "national_id=11010519900101003X" \
-F "passport_number=SAMPLE-PASS-12345"
from didit import Didit
# Reads DIDIT_API_KEY.
client = Didit()
result = client.database_validation.validate(
issuing_state="CHN",
services=["chn_passport_verification"],
consent=True,
full_name="王新伟",
date_of_birth="1990-01-01",
passport_number="SAMPLE-PASS-12345",
national_id="11010519900101003X",
vendor_data="user-1234",
)
print(result)
import Didit from "@didit-protocol/sdk-node";
// Reads DIDIT_API_KEY.
const didit = new Didit();
const result = await didit.databaseValidation.validate({
issuing_state: "CHN",
services: ["chn_passport_verification"],
consent: true,
full_name: "王新伟",
date_of_birth: "1990-01-01",
passport_number: "SAMPLE-PASS-12345",
national_id: "11010519900101003X",
vendor_data: "user-1234",
});
console.log(result);
ctx := context.Background()
// Reads DIDIT_API_KEY.
client := didit.NewClient()
result, err := client.DatabaseValidation.Validate(ctx, didit.DatabaseValidationValidateParams{
IssuingState: "CHN",
Services: didit.Some([]string{"chn_passport_verification"}),
Consent: didit.Bool(true),
FullName: didit.String("王新伟"),
DateOfBirth: didit.String("1990-01-01"),
PassportNumber: didit.String("SAMPLE-PASS-12345"),
NationalID: didit.String("11010519900101003X"),
VendorData: didit.String("user-1234"),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)
import java.time.LocalDate;
import java.util.List;
import me.didit.Didit;
import me.didit.types.DatabaseValidationValidateParams;
// Reads DIDIT_API_KEY.
Didit client = new Didit();
var result = client.databaseValidation().validate(DatabaseValidationValidateParams.builder()
.issuingState("CHN")
.services(List.of("chn_passport_verification"))
.consent(true)
.fullName("王新伟")
.dateOfBirth(LocalDate.parse("1990-01-01"))
.passportNumber("SAMPLE-PASS-12345")
.nationalId("11010519900101003X")
.vendorData("user-1234")
.build());
System.out.println(result);
<?php
require 'vendor/autoload.php';
use Didit\DiditClient;
// Reads DIDIT_API_KEY.
$didit = new DiditClient();
$result = $didit->databaseValidation->validate([
'issuing_state' => 'CHN',
'services' => ['chn_passport_verification'],
'consent' => true,
'full_name' => '王新伟',
'date_of_birth' => '1990-01-01',
'passport_number' => 'SAMPLE-PASS-12345',
'national_id' => '11010519900101003X',
'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
require "didit"
# Reads DIDIT_API_KEY.
didit = Didit::Client.new
result = didit.database_validation.validate(
issuing_state: "CHN",
services: ["chn_passport_verification"],
consent: true,
full_name: "王新伟",
date_of_birth: "1990-01-01",
passport_number: "SAMPLE-PASS-12345",
national_id: "11010519900101003X",
vendor_data: "user-1234"
)
puts result.to_h
using System;
using System.Text.Json;
using Didit;
// Reads DIDIT_API_KEY.
using var client = new DiditClient();
var result = await client.DatabaseValidation.ValidateAsync(new DatabaseValidationValidateParams
{
IssuingState = "CHN",
Services = new string[] { "chn_passport_verification" },
Consent = true,
FullName = "王新伟",
DateOfBirth = "1990-01-01",
PassportNumber = "SAMPLE-PASS-12345",
NationalId = "11010519900101003X",
VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
{
"request_id": "req_01H…",
"status": "Approved",
"issuing_state": "CHN",
"match_type": "full_match",
"validations": [
{
"outcome_code": "MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "1990-01-01",
"identification_number": "11010519900101003X",
"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"
}
}
]
}
{
"request_id": "req_01H…",
"status": "In Review",
"issuing_state": "CHN",
"match_type": "partial_match",
"validations": [
{
"outcome_code": "PARTIAL_MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "1990-01-01",
"identification_number": "11010519900101003X",
"verifications": {
"date_of_birth": true,
"full_name": false,
"identification_number": true
}
},
"validation": {
"date_of_birth": "full_match",
"full_name": "no_match",
"identification_number": "full_match"
}
}
]
}
{
"request_id": "req_01H…",
"status": "Declined",
"issuing_state": "CHN",
"match_type": "no_match",
"validations": [
{
"outcome_code": "NO_MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "NO_MATCH",
"full_name": "NO_MATCH",
"identification_number": "NO_MATCH"
},
"validation": {
"date_of_birth": "no_match",
"full_name": "no_match",
"identification_number": "no_match"
}
}
]
}
🇨🇳 China
China Passport Verification API: Real-Time Lookup
China Passport Verification: authoritative China database validation via Didit’s identity infrastructure. Pay-per-call from $1.67, no contracts, no minimums.
POST
/
v3
/
database-validation
/
curl -X POST "https://verification.didit.me/v3/database-validation/" \
-H "x-api-key: YOUR_API_KEY" \
-F "issuing_state=CHN" \
-F "services=chn_passport_verification" \
-F "vendor_data=user-1234" \
-F "consent=true" \
-F "full_name=王新伟" \
-F "date_of_birth=1990-01-01" \
-F "national_id=11010519900101003X" \
-F "passport_number=SAMPLE-PASS-12345"
from didit import Didit
# Reads DIDIT_API_KEY.
client = Didit()
result = client.database_validation.validate(
issuing_state="CHN",
services=["chn_passport_verification"],
consent=True,
full_name="王新伟",
date_of_birth="1990-01-01",
passport_number="SAMPLE-PASS-12345",
national_id="11010519900101003X",
vendor_data="user-1234",
)
print(result)
import Didit from "@didit-protocol/sdk-node";
// Reads DIDIT_API_KEY.
const didit = new Didit();
const result = await didit.databaseValidation.validate({
issuing_state: "CHN",
services: ["chn_passport_verification"],
consent: true,
full_name: "王新伟",
date_of_birth: "1990-01-01",
passport_number: "SAMPLE-PASS-12345",
national_id: "11010519900101003X",
vendor_data: "user-1234",
});
console.log(result);
ctx := context.Background()
// Reads DIDIT_API_KEY.
client := didit.NewClient()
result, err := client.DatabaseValidation.Validate(ctx, didit.DatabaseValidationValidateParams{
IssuingState: "CHN",
Services: didit.Some([]string{"chn_passport_verification"}),
Consent: didit.Bool(true),
FullName: didit.String("王新伟"),
DateOfBirth: didit.String("1990-01-01"),
PassportNumber: didit.String("SAMPLE-PASS-12345"),
NationalID: didit.String("11010519900101003X"),
VendorData: didit.String("user-1234"),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)
import java.time.LocalDate;
import java.util.List;
import me.didit.Didit;
import me.didit.types.DatabaseValidationValidateParams;
// Reads DIDIT_API_KEY.
Didit client = new Didit();
var result = client.databaseValidation().validate(DatabaseValidationValidateParams.builder()
.issuingState("CHN")
.services(List.of("chn_passport_verification"))
.consent(true)
.fullName("王新伟")
.dateOfBirth(LocalDate.parse("1990-01-01"))
.passportNumber("SAMPLE-PASS-12345")
.nationalId("11010519900101003X")
.vendorData("user-1234")
.build());
System.out.println(result);
<?php
require 'vendor/autoload.php';
use Didit\DiditClient;
// Reads DIDIT_API_KEY.
$didit = new DiditClient();
$result = $didit->databaseValidation->validate([
'issuing_state' => 'CHN',
'services' => ['chn_passport_verification'],
'consent' => true,
'full_name' => '王新伟',
'date_of_birth' => '1990-01-01',
'passport_number' => 'SAMPLE-PASS-12345',
'national_id' => '11010519900101003X',
'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
require "didit"
# Reads DIDIT_API_KEY.
didit = Didit::Client.new
result = didit.database_validation.validate(
issuing_state: "CHN",
services: ["chn_passport_verification"],
consent: true,
full_name: "王新伟",
date_of_birth: "1990-01-01",
passport_number: "SAMPLE-PASS-12345",
national_id: "11010519900101003X",
vendor_data: "user-1234"
)
puts result.to_h
using System;
using System.Text.Json;
using Didit;
// Reads DIDIT_API_KEY.
using var client = new DiditClient();
var result = await client.DatabaseValidation.ValidateAsync(new DatabaseValidationValidateParams
{
IssuingState = "CHN",
Services = new string[] { "chn_passport_verification" },
Consent = true,
FullName = "王新伟",
DateOfBirth = "1990-01-01",
PassportNumber = "SAMPLE-PASS-12345",
NationalId = "11010519900101003X",
VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
{
"request_id": "req_01H…",
"status": "Approved",
"issuing_state": "CHN",
"match_type": "full_match",
"validations": [
{
"outcome_code": "MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "1990-01-01",
"identification_number": "11010519900101003X",
"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"
}
}
]
}
{
"request_id": "req_01H…",
"status": "In Review",
"issuing_state": "CHN",
"match_type": "partial_match",
"validations": [
{
"outcome_code": "PARTIAL_MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "1990-01-01",
"identification_number": "11010519900101003X",
"verifications": {
"date_of_birth": true,
"full_name": false,
"identification_number": true
}
},
"validation": {
"date_of_birth": "full_match",
"full_name": "no_match",
"identification_number": "full_match"
}
}
]
}
{
"request_id": "req_01H…",
"status": "Declined",
"issuing_state": "CHN",
"match_type": "no_match",
"validations": [
{
"outcome_code": "NO_MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "NO_MATCH",
"full_name": "NO_MATCH",
"identification_number": "NO_MATCH"
},
"validation": {
"date_of_birth": "no_match",
"full_name": "no_match",
"identification_number": "no_match"
}
}
]
}
Verifies input data against the official data service in China. 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: China
- Service ID:
chn_passport_verification - Data domain: Document
- Category: Passport
Inputs
| Field | Required | Example |
|---|---|---|
full_name | Yes | 王新伟 |
date_of_birth | Yes | 1990-01-01 |
national_id | Yes | 11010519900101003X |
passport_number | Yes | SAMPLE-PASS-12345 |
vendor_data | No | user-1234 |
- Required inputs:
full_name,date_of_birth,national_id,passport_number - Optional inputs:
vendor_data - Consent: Required
- Workflow availability: Available in workflow
- Coverage: ~ 100%
- Price: $1.67 per successful query
Body parameters
string
default:"CHN"
required
ISO 3166-1 alpha-3 country code for this database service.Example:
CHNstring
default:"chn_passport_verification"
required
Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example:
chn_passport_verificationboolean
default:"true"
required
Explicit end-user consent for this service.Example:
truestring
default:"王新伟"
required
Full legal name to validate.Example:
王新伟string
default:"1990-01-01"
required
Date of birth in
YYYY-MM-DD format.Example: 1990-01-01string
default:"11010519900101003X"
required
National identity number for this service.Example:
11010519900101003Xstring
default:"SAMPLE-PASS-12345"
required
Passport number.Example:
SAMPLE-PASS-12345string
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-1234Input rules & validation notes
- Date of birth must match the birth date encoded in the Chinese national ID (digits 7-14 of an 18-character number, 7-12 of a legacy 15-digit one)
date_of_birthmust match the birth date encoded innational_id; the source rejects the request outright when the two disagree, so a mismatch is refused before the lookup and is not charged.national_idmust match(?:\d{15}|\d{17}[\dXx]).- The final Chinese Resident Identity Card check character is validated.
full_namemust be the original Chinese-script name as it appears in the registry or on the document. Do not send the Latin transliteration for China database checks.
How to call it
curl -X POST "https://verification.didit.me/v3/database-validation/" \
-H "x-api-key: YOUR_API_KEY" \
-F "issuing_state=CHN" \
-F "services=chn_passport_verification" \
-F "vendor_data=user-1234" \
-F "consent=true" \
-F "full_name=王新伟" \
-F "date_of_birth=1990-01-01" \
-F "national_id=11010519900101003X" \
-F "passport_number=SAMPLE-PASS-12345"
from didit import Didit
# Reads DIDIT_API_KEY.
client = Didit()
result = client.database_validation.validate(
issuing_state="CHN",
services=["chn_passport_verification"],
consent=True,
full_name="王新伟",
date_of_birth="1990-01-01",
passport_number="SAMPLE-PASS-12345",
national_id="11010519900101003X",
vendor_data="user-1234",
)
print(result)
import Didit from "@didit-protocol/sdk-node";
// Reads DIDIT_API_KEY.
const didit = new Didit();
const result = await didit.databaseValidation.validate({
issuing_state: "CHN",
services: ["chn_passport_verification"],
consent: true,
full_name: "王新伟",
date_of_birth: "1990-01-01",
passport_number: "SAMPLE-PASS-12345",
national_id: "11010519900101003X",
vendor_data: "user-1234",
});
console.log(result);
ctx := context.Background()
// Reads DIDIT_API_KEY.
client := didit.NewClient()
result, err := client.DatabaseValidation.Validate(ctx, didit.DatabaseValidationValidateParams{
IssuingState: "CHN",
Services: didit.Some([]string{"chn_passport_verification"}),
Consent: didit.Bool(true),
FullName: didit.String("王新伟"),
DateOfBirth: didit.String("1990-01-01"),
PassportNumber: didit.String("SAMPLE-PASS-12345"),
NationalID: didit.String("11010519900101003X"),
VendorData: didit.String("user-1234"),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)
import java.time.LocalDate;
import java.util.List;
import me.didit.Didit;
import me.didit.types.DatabaseValidationValidateParams;
// Reads DIDIT_API_KEY.
Didit client = new Didit();
var result = client.databaseValidation().validate(DatabaseValidationValidateParams.builder()
.issuingState("CHN")
.services(List.of("chn_passport_verification"))
.consent(true)
.fullName("王新伟")
.dateOfBirth(LocalDate.parse("1990-01-01"))
.passportNumber("SAMPLE-PASS-12345")
.nationalId("11010519900101003X")
.vendorData("user-1234")
.build());
System.out.println(result);
<?php
require 'vendor/autoload.php';
use Didit\DiditClient;
// Reads DIDIT_API_KEY.
$didit = new DiditClient();
$result = $didit->databaseValidation->validate([
'issuing_state' => 'CHN',
'services' => ['chn_passport_verification'],
'consent' => true,
'full_name' => '王新伟',
'date_of_birth' => '1990-01-01',
'passport_number' => 'SAMPLE-PASS-12345',
'national_id' => '11010519900101003X',
'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
require "didit"
# Reads DIDIT_API_KEY.
didit = Didit::Client.new
result = didit.database_validation.validate(
issuing_state: "CHN",
services: ["chn_passport_verification"],
consent: true,
full_name: "王新伟",
date_of_birth: "1990-01-01",
passport_number: "SAMPLE-PASS-12345",
national_id: "11010519900101003X",
vendor_data: "user-1234"
)
puts result.to_h
using System;
using System.Text.Json;
using Didit;
// Reads DIDIT_API_KEY.
using var client = new DiditClient();
var result = await client.DatabaseValidation.ValidateAsync(new DatabaseValidationValidateParams
{
IssuingState = "CHN",
Services = new string[] { "chn_passport_verification" },
Consent = true,
FullName = "王新伟",
DateOfBirth = "1990-01-01",
PassportNumber = "SAMPLE-PASS-12345",
NationalId = "11010519900101003X",
VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
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.MATCH — The registry confirmed the identity and every checked field matched.{
"request_id": "req_01H…",
"status": "Approved",
"issuing_state": "CHN",
"match_type": "full_match",
"validations": [
{
"outcome_code": "MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "1990-01-01",
"identification_number": "11010519900101003X",
"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"
}
}
]
}
PARTIAL_MATCH — The identification number was found but one or more personal fields (usually name or date of birth) did not fully match.{
"request_id": "req_01H…",
"status": "In Review",
"issuing_state": "CHN",
"match_type": "partial_match",
"validations": [
{
"outcome_code": "PARTIAL_MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "1990-01-01",
"identification_number": "11010519900101003X",
"verifications": {
"date_of_birth": true,
"full_name": false,
"identification_number": true
}
},
"validation": {
"date_of_birth": "full_match",
"full_name": "no_match",
"identification_number": "full_match"
}
}
]
}
NO_MATCH — The registry returned no match for the submitted data.{
"request_id": "req_01H…",
"status": "Declined",
"issuing_state": "CHN",
"match_type": "no_match",
"validations": [
{
"outcome_code": "NO_MATCH",
"service_id": "chn_passport_verification",
"service_name": "China Passport Verification",
"source_data": {
"date_of_birth": "NO_MATCH",
"full_name": "NO_MATCH",
"identification_number": "NO_MATCH"
},
"validation": {
"date_of_birth": "no_match",
"full_name": "no_match",
"identification_number": "no_match"
}
}
]
}
Returned data
The exact fields surfaced insource_data depend on what the registry returns. The generated example for chn_passport_verification currently documents this normalized shape:
date_of_birthidentification_number
Pricing & SLAs
China Passport Verification queries are billed only when Didit receives a conclusive result from the validation source.- Per-call price: $1.67 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
Last modified on October 29, 2026