curl -X POST "https://verification.didit.me/v3/database-validation/" \
-H "x-api-key: YOUR_API_KEY" \
-F "issuing_state=NGA" \
-F "services=nga_national_id" \
-F "vendor_data=user-1234" \
-F "first_name=John" \
-F "last_name=Doe" \
-F "national_id=11111111111"
from didit import Didit
# Reads DIDIT_API_KEY.
client = Didit()
result = client.database_validation.validate(
issuing_state="NGA",
services=["nga_national_id"],
first_name="John",
last_name="Doe",
national_id="11111111111",
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: "NGA",
services: ["nga_national_id"],
first_name: "John",
last_name: "Doe",
national_id: "11111111111",
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: "NGA",
Services: didit.Some([]string{"nga_national_id"}),
FirstName: didit.String("John"),
LastName: didit.String("Doe"),
NationalID: didit.String("11111111111"),
VendorData: didit.String("user-1234"),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)
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("NGA")
.services(List.of("nga_national_id"))
.firstName("John")
.lastName("Doe")
.nationalId("11111111111")
.vendorData("user-1234")
.build());
System.out.println(result);
<?php
require 'vendor/autoload.php';
use Didit\DiditClient;
// Reads DIDIT_API_KEY.
$didit = new DiditClient();
$result = $didit->databaseValidation->validate([
'issuing_state' => 'NGA',
'services' => ['nga_national_id'],
'first_name' => 'John',
'last_name' => 'Doe',
'national_id' => '11111111111',
'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
require "didit"
# Reads DIDIT_API_KEY.
didit = Didit::Client.new
result = didit.database_validation.validate(
issuing_state: "NGA",
services: ["nga_national_id"],
first_name: "John",
last_name: "Doe",
national_id: "11111111111",
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 = "NGA",
Services = new string[] { "nga_national_id" },
FirstName = "John",
LastName = "Doe",
NationalId = "11111111111",
VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
{
"request_id": "req_01H…",
"status": "Approved",
"issuing_state": "NGA",
"match_type": "full_match",
"validations": [
{
"outcome_code": "MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"first_name": "John",
"full_name": "John Doe",
"identification_number": "SAMPLE-ID-12345",
"last_name": "Doe",
"name_match_score": "1.000"
},
"validation": {
"full_name": "full_match",
"identification_number": "full_match"
}
}
]
}
{
"request_id": "req_01H…",
"status": "In Review",
"issuing_state": "NGA",
"match_type": "partial_match",
"validations": [
{
"outcome_code": "PARTIAL_MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"first_name": "John",
"full_name": "John Doe",
"identification_number": "SAMPLE-ID-12345",
"last_name": "Doe",
"name_match_score": "1.000"
},
"validation": {
"full_name": "no_match",
"identification_number": "full_match"
}
}
]
}
{
"request_id": "req_01H…",
"status": "Declined",
"issuing_state": "NGA",
"match_type": "no_match",
"validations": [
{
"outcome_code": "NO_MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"full_name": "NO_MATCH",
"identification_number": "NO_MATCH"
},
"validation": {
"full_name": "no_match",
"identification_number": "no_match"
}
}
]
}
🇳🇬 Nigeria
Nigeria National ID (NIMC) Verification API
Nigeria National ID (NIMC): authoritative Nigeria database validation via Didit’s identity infrastructure. Pay-per-call from $0.20, 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=NGA" \
-F "services=nga_national_id" \
-F "vendor_data=user-1234" \
-F "first_name=John" \
-F "last_name=Doe" \
-F "national_id=11111111111"
from didit import Didit
# Reads DIDIT_API_KEY.
client = Didit()
result = client.database_validation.validate(
issuing_state="NGA",
services=["nga_national_id"],
first_name="John",
last_name="Doe",
national_id="11111111111",
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: "NGA",
services: ["nga_national_id"],
first_name: "John",
last_name: "Doe",
national_id: "11111111111",
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: "NGA",
Services: didit.Some([]string{"nga_national_id"}),
FirstName: didit.String("John"),
LastName: didit.String("Doe"),
NationalID: didit.String("11111111111"),
VendorData: didit.String("user-1234"),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)
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("NGA")
.services(List.of("nga_national_id"))
.firstName("John")
.lastName("Doe")
.nationalId("11111111111")
.vendorData("user-1234")
.build());
System.out.println(result);
<?php
require 'vendor/autoload.php';
use Didit\DiditClient;
// Reads DIDIT_API_KEY.
$didit = new DiditClient();
$result = $didit->databaseValidation->validate([
'issuing_state' => 'NGA',
'services' => ['nga_national_id'],
'first_name' => 'John',
'last_name' => 'Doe',
'national_id' => '11111111111',
'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
require "didit"
# Reads DIDIT_API_KEY.
didit = Didit::Client.new
result = didit.database_validation.validate(
issuing_state: "NGA",
services: ["nga_national_id"],
first_name: "John",
last_name: "Doe",
national_id: "11111111111",
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 = "NGA",
Services = new string[] { "nga_national_id" },
FirstName = "John",
LastName = "Doe",
NationalId = "11111111111",
VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
{
"request_id": "req_01H…",
"status": "Approved",
"issuing_state": "NGA",
"match_type": "full_match",
"validations": [
{
"outcome_code": "MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"first_name": "John",
"full_name": "John Doe",
"identification_number": "SAMPLE-ID-12345",
"last_name": "Doe",
"name_match_score": "1.000"
},
"validation": {
"full_name": "full_match",
"identification_number": "full_match"
}
}
]
}
{
"request_id": "req_01H…",
"status": "In Review",
"issuing_state": "NGA",
"match_type": "partial_match",
"validations": [
{
"outcome_code": "PARTIAL_MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"first_name": "John",
"full_name": "John Doe",
"identification_number": "SAMPLE-ID-12345",
"last_name": "Doe",
"name_match_score": "1.000"
},
"validation": {
"full_name": "no_match",
"identification_number": "full_match"
}
}
]
}
{
"request_id": "req_01H…",
"status": "Declined",
"issuing_state": "NGA",
"match_type": "no_match",
"validations": [
{
"outcome_code": "NO_MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"full_name": "NO_MATCH",
"identification_number": "NO_MATCH"
},
"validation": {
"full_name": "no_match",
"identification_number": "no_match"
}
}
]
}
Verifies data against the National Identity 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: Nigeria
- Service ID:
nga_national_id - Data domain: Identity
- Category: NationalIDRegistry
Inputs
| Field | Required | Example |
|---|---|---|
first_name | Yes | John |
last_name | Yes | Doe |
national_id | Yes | 11111111111 |
date_of_birth | No | 1990-01-01 |
vendor_data | No | user-1234 |
- Required inputs:
first_name,last_name,national_id - Optional inputs:
date_of_birth,vendor_data - Consent: Not required
- Workflow availability: Available in workflow
- Coverage: ~ 100%
- Price: $0.20 per successful query
Body parameters
string
default:"NGA"
required
ISO 3166-1 alpha-3 country code for this database service.Example:
NGAstring
default:"nga_national_id"
required
Array containing this service ID. Pinning the service keeps the request scoped to this exact database.Example:
nga_national_idstring
default:"John"
required
Given name to validate.Example:
Johnstring
default:"Doe"
required
Family name to validate.Example:
Doestring
default:"11111111111"
required
National identity number for this service.Example:
11111111111string
Date of birth in
YYYY-MM-DD format.Example: 1990-01-01string
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
first_namemust match[A-Za-zÀ-ÖØ-öø-ÿ .'-]+.national_idmust contain digits only; remove spaces, hyphens, and punctuation before sending the request.national_idmust 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=NGA" \
-F "services=nga_national_id" \
-F "vendor_data=user-1234" \
-F "first_name=John" \
-F "last_name=Doe" \
-F "national_id=11111111111"
from didit import Didit
# Reads DIDIT_API_KEY.
client = Didit()
result = client.database_validation.validate(
issuing_state="NGA",
services=["nga_national_id"],
first_name="John",
last_name="Doe",
national_id="11111111111",
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: "NGA",
services: ["nga_national_id"],
first_name: "John",
last_name: "Doe",
national_id: "11111111111",
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: "NGA",
Services: didit.Some([]string{"nga_national_id"}),
FirstName: didit.String("John"),
LastName: didit.String("Doe"),
NationalID: didit.String("11111111111"),
VendorData: didit.String("user-1234"),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)
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("NGA")
.services(List.of("nga_national_id"))
.firstName("John")
.lastName("Doe")
.nationalId("11111111111")
.vendorData("user-1234")
.build());
System.out.println(result);
<?php
require 'vendor/autoload.php';
use Didit\DiditClient;
// Reads DIDIT_API_KEY.
$didit = new DiditClient();
$result = $didit->databaseValidation->validate([
'issuing_state' => 'NGA',
'services' => ['nga_national_id'],
'first_name' => 'John',
'last_name' => 'Doe',
'national_id' => '11111111111',
'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
require "didit"
# Reads DIDIT_API_KEY.
didit = Didit::Client.new
result = didit.database_validation.validate(
issuing_state: "NGA",
services: ["nga_national_id"],
first_name: "John",
last_name: "Doe",
national_id: "11111111111",
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 = "NGA",
Services = new string[] { "nga_national_id" },
FirstName = "John",
LastName = "Doe",
NationalId = "11111111111",
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": "NGA",
"match_type": "full_match",
"validations": [
{
"outcome_code": "MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"first_name": "John",
"full_name": "John Doe",
"identification_number": "SAMPLE-ID-12345",
"last_name": "Doe",
"name_match_score": "1.000"
},
"validation": {
"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": "NGA",
"match_type": "partial_match",
"validations": [
{
"outcome_code": "PARTIAL_MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"first_name": "John",
"full_name": "John Doe",
"identification_number": "SAMPLE-ID-12345",
"last_name": "Doe",
"name_match_score": "1.000"
},
"validation": {
"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": "NGA",
"match_type": "no_match",
"validations": [
{
"outcome_code": "NO_MATCH",
"service_id": "nga_national_id",
"service_name": "Nigeria National ID (NIMC)",
"source_data": {
"full_name": "NO_MATCH",
"identification_number": "NO_MATCH"
},
"validation": {
"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 nga_national_id currently documents this normalized shape:
first_namefull_nameidentification_numberlast_namename_match_score
Pricing & SLAs
Nigeria National ID (NIMC) 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.
Continue reading
Last modified on October 29, 2026