# IBAN LI (Liechtenstein) Validator

> IBAN LI (Liechtenstein) Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Validates whether a given IBAN is a mod-97-valid Liechtenstein (LI) IBAN of exactly 21 characters

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/check-iban-li?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/iban-li-liechtenstein-validator-f7735b4e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lA8OI17BMrVT-XtIfCK2m

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 iban-li-liechtenstein-validator-f7735b4e -d '<json body>'
```

Example prompt: Can you check if LI21088100002324013AA is a valid Liechtenstein IBAN — does it pass the mod-97 checksum and have the right 21-character LI format?

## When to prefer this

Use this endpoint when you specifically need to validate a Liechtenstein (LI) IBAN with exact mod-97 compliance and a 21-character length requirement. Prefer the free sandbox endpoint POST /v1/sandbox/check-iban-li for testing. Choose this paid endpoint in production pipelines where you need guaranteed validation for LI IBANs. Use sibling endpoints (HR, HU, GI validators) for other country IBANs.

## Known failure modes

- Input string is empty or missing — returns validation error
- IBAN is wrong length (not 21 characters) — fails with format error
- Country code is not 'LI' — fails country mismatch
- Mod-97 checksum fails — returns invalid with checksum error
- Non-alphanumeric characters in IBAN — parsing error
- Malformed request body — HTTP 400 bad request

## How this service works

Call when an agent needs whether an IBAN is a mod-97-valid LI number of length 21. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-li first.

## Output

A boolean or structured result indicating whether the provided IBAN string is a valid Liechtenstein (LI) IBAN: confirms it starts with 'LI', has exactly 21 characters, and passes the mod-97 checksum algorithm. Returns validation status and possibly an error or reason if invalid.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "description": "JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN."
  },
  "value": {
   "type": "string",
   "examples": [
    "LI39AAAA0000000000000"
   ],
   "maxLength": 20000,
   "minLength": 1,
   "description": "Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar."
  },
  "schema": {
   "description": "JSON Schema document for schema-check SKUs. Omit it on string checks."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/iban-li-liechtenstein-validator-f7735b4e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)