# Validate an IBAN

This endpoint validates an IBAN. If the IBAN is valid, then the API returns details about the number, e.g., the financial institution of the bank account and the account number.

Endpoint: POST /v1/iban_lookups
Version: 1.0

## Request fields (application/json):

  - `iban` (string)
    International Bank Account Number (IBAN).
    Example: "DE75512108001245126199"

## Response 200 fields (application/json):

  - `iban` (string)
    International Bank Account Number (IBAN).
    Example: "DE75512108001245126199"

  - `bic` (string)
    The BIC of the financial institution.
    Example: "SOBKDEB2XXX"

  - `institution` (string)
    The name of the financial institution to which the account belongs.
    Example: "solarisBank Gf (S)"

## Response 400 fields (application/json):

  - `id` (string)
    Example: "a95f2aaf-4e0c-4d49-8021-8a16a884ed86"

  - `status` (string)
    Example: "400"

  - `code` (string)
    Example: "invalid_iban"

  - `title` (string)
    Example: "Invalid IBAN."

  - `detail` (string)
    Example: "IBAN (DE7911010013828082634) is structurally invalid."