# SYNTHORA IBAN Validate

> SYNTHORA IBAN Validate is a paid API for AI agents from iban-validate.hergertsynthora.com, paid per call via x402, $0.001/call, status down (last checked 2026-09-02).

Validates an IBAN string using ISO 13616 mod-97 checksum, country/length rules, BBAN structure checks, and bank/branch extraction — fully offline and deterministic.

## Facts

- Endpoint: POST https://iban-validate.hergertsynthora.com/service
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-iban-validate-f58d7de4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YhkAlvu-pJ4VUpTFi8KLm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability synthora-iban-validate-f58d7de4 -d '<json body>'
```

Example prompt: Can you validate this IBAN for me — GB29NWBK60161331926819 — and tell me if it passes the ISO 13616 checksum and what bank and branch codes it contains?

## When to prefer this

Choose this endpoint when you need fast, offline, deterministic IBAN validation with no dependency on third-party banking APIs or network lookups. Ideal for pre-payment validation, form validation pipelines, compliance checks, and any scenario where you need instant algorithmic verification of IBAN structure and checksum without sharing data externally. Cost is minimal at $0.001 USDC per call.

## Known failure modes

- Invalid IBAN format returns ok:false with a reason indicating which rule failed (checksum, length, country code unrecognized)
- Empty or missing IBAN input returns an error response
- Non-IBAN strings (e.g. sort codes, account numbers without country prefix) will fail format validation
- IBANs from unsupported or non-standard countries may return partial results

## How this service works

IBAN validation for agents: ISO 13616 mod-97 checksum, country + length rules, BBAN structure, bank/branch extraction where applicable. Pure algorithmic (offline, deterministic, no third-party API). Instant JSON verdict. $0.001 USDC via x402 on Base. SYNTHORA.

## Output

A JSON object containing a boolean validation verdict, the parsed IBAN components (country code, check digits, BBAN), extracted bank code and branch code where applicable, and the specific rule(s) that passed or failed (checksum, length, country format). A receipt is also included confirming the $0.001 USDC micropayment.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "iban_validate",
  "result": {},
  "receipt": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-iban-validate-f58d7de4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from iban-validate.hergertsynthora.com](https://www.zero.xyz/host/iban-validate.hergertsynthora.com/llms.txt)