# Retrieve bank account specification by country

Fetch the specifications for a set of countries to know which credential fields are required, the validations for each fields, and how to translate these country-specific fields to the generic fields in the PayoutMethodBankAccount type.

## Parameters

- `countries` (array of strings, optional)
  The countries to fetch the bank account spec for.

## Returns

## Response attributes

- `object` (string, value is "v2.money_management.payout_methods_bank_account_spec")
  String representing the object’s type. Objects of the same type share the same value of the object field.

- `countries` (map)
  The list of specs by country.

- `livemode` (boolean)
  Has the value `true` if the object exists in live mode or the value `false` if the object exists in test mode.

## Error Codes

| HTTP status code | Code                 | Description                                                                              |
| ---------------- | -------------------- | ---------------------------------------------------------------------------------------- |
| 400              | invalid_country_code | Returned in cases where the country code requested for the bank account spec is invalid. |

```curl
curl -G https://api.stripe.com/v2/money_management/payout_methods_bank_account_spec \
  -H "Authorization: Bearer <<YOUR_SECRET_KEY>>" \
  -H "Stripe-Version: 2026-01-28.preview" \
  -d "countries[0]"=US
```

### Response

```json
{
  "object": "v2.money_management.payout_methods_bank_account_spec",
  "countries": {
    "US": {
      "fields": [
        {
          "local_name": "account_number",
          "local_name_human": {
            "localization_key": "payout_methods.bank_account.account_number",
            "content": "Account Number"
          },
          "max_length": 17,
          "min_length": 1,
          "placeholder": "000123456789",
          "stripe_name": "account_number",
          "validation_regex": "\\A\\d{1,17}\\z"
        },
        {
          "local_name": "routing_number",
          "local_name_human": {
            "localization_key": "payout_methods.bank_account.routing_number",
            "content": "Routing Number"
          },
          "max_length": 9,
          "min_length": 9,
          "placeholder": "110000000",
          "stripe_name": "routing_number",
          "validation_regex": "\\A(01|02|03|04|05|06|07|08|09|10|11|12|21|22|23|24|25|26|27|28|29|30|31|32)[0-9]{7}\\z"
        }
      ]
    }
  },
  "livemode": true
}
```