---
title: "IBAN Validation (x402)"
method: GET
path: "/x402/v2/iban-validate"
tags: ["x402"]
---

# IBAN Validation (x402)

`GET /x402/v2/iban-validate`

## Request

- Base URL: `https://api.strale.io`
- URL: `https://api.strale.io/x402/v2/iban-validate`
- Auth: none required

Validate an IBAN number. Checks format, length, and mod-97 checksum. Extracts country code, bank identifier, and branch code. Pure algorithmic — fast and cheap.

## Query parameters

- `iban` string, required: IBAN to validate (e.g. SE3550000000054910000003)

## Response `200`

Success

- object
  - `error` string
  - `valid` boolean
  - `bank_code` string
  - `branch_code` string
  - `country_code` string

## Other responses

- `402`: Payment required (x402 — pay with USDC on Base)

---

[API](https://skmtc.dev/strale/apis/strale-api-2.md) · [All operations](https://skmtc.dev/strale/apis/strale-api-2/llms.txt) · [OpenAPI document](https://skmtc.dev/strale/apis/strale-api-2/revisions/a5293878cfc6?raw)