> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usenumero.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Financial Verification

> Verify bank accounts and run Anti-Money Laundering  checks.

Verify bank accounts and run Anti-Money Laundering (AML) checks.

***

## Bank Account Verification

Verify a bank account number and retrieve account holder details.

```
POST /api/v1/business/verification/bank-account
```

**Signature required:** Yes

### Request body

| Field            | Type   | Required | Description                                                          |
| ---------------- | ------ | -------- | -------------------------------------------------------------------- |
| `accountNumber`  | string | Yes      | Bank account number                                                  |
| `bankCode`       | string | Yes      | Bank code (from [Get Bank List](/api-reference/transfers-get-banks)) |
| `idempotencyKey` | string | No       | Unique key to prevent duplicate charges                              |

### Request example

```bash theme={null}
curl -X POST "https://api.usenumero.com/numeroaccount/api/v1/business/verification/bank-account" \
  -H "Content-Type: application/json" \
  -H "X-Numero-Api-Key: your_api_key" \
  -H "X-Numero-Signature: $SIGNATURE" \
  -H "X-Numero-Signature-Version: v2" \
  -d '{
    "accountNumber": "0123456789",
    "bankCode": "000013"
  }'
```

***

## AML Check

Run an Anti-Money Laundering screening against global watchlists.

```
POST /api/v1/business/verification/aml
```

**Signature required:** Yes

### Request body

| Field              | Type    | Required | Description                                                     |
| ------------------ | ------- | -------- | --------------------------------------------------------------- |
| `fullName`         | string  | No       | Full name (alternative to firstName + lastName)                 |
| `firstName`        | string  | No       | First name                                                      |
| `lastName`         | string  | No       | Last name                                                       |
| `dateOfBirth`      | string  | No       | Date of birth (YYYY-MM-DD)                                      |
| `yearOfBirth`      | integer | No       | 4-digit year of birth                                           |
| `countries`        | string  | Yes      | ISO2 country codes, comma-separated (e.g., `"NG"` or `"NG,KE"`) |
| `phoneNumber`      | string  | No       | Phone number                                                    |
| `address`          | string  | No       | Address                                                         |
| `bvn`              | string  | No       | BVN                                                             |
| `nin`              | string  | No       | NIN                                                             |
| `additionalParams` | object  | No       | Additional key-value parameters                                 |
| `idempotencyKey`   | string  | No       | Unique key to prevent duplicate charges                         |

> Provide at least a name (`fullName` or `firstName` + `lastName`) and `countries` for the check to work.

### Request example

```bash theme={null}
curl -X POST "https://api.usenumero.com/numeroaccount/api/v1/business/verification/aml" \
  -H "Content-Type: application/json" \
  -H "X-Numero-Api-Key: your_api_key" \
  -H "X-Numero-Signature: $SIGNATURE" \
  -H "X-Numero-Signature-Version: v2" \
  -d '{
    "firstName": "John",
    "lastName": "Doe",
    "dateOfBirth": "1990-05-15",
    "countries": "NG"
  }'
```