# IBAN AZ (Azerbaijan) Mod-97 Validator

> IBAN AZ (Azerbaijan) Mod-97 Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Validates whether a given string is a syntactically correct Azerbaijani IBAN: 28 characters long and passing the mod-97 checksum.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/check-iban-az?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/iban-az-azerbaijan-mod-97-validator-463de482
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_N1aUrsAgXYXRm_IGybHU0

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-az-azerbaijan-mod-97-validator-463de482 -d '<json body>'
```

Example prompt: Can you check whether 'AZ21NABZ00000000137010001944' is a valid Azerbaijan IBAN — so 28 characters long and passing the mod-97 checksum?

## When to prefer this

Use this endpoint when you specifically need to validate an Azerbaijani (AZ) IBAN and want country-specific length enforcement (28 chars) plus mod-97 checksum. Prefer the unpaid sandbox POST /v1/sandbox/check-iban-az for testing. For validating IBANs from other countries, use the corresponding country-specific sibling endpoints or the generic IBAN validator that checks all supported countries.

## Known failure modes

- Input string is empty or exceeds maxLength — request rejected
- IBAN fails mod-97 checksum — returns invalid
- IBAN is not 28 characters — returns invalid
- IBAN does not start with 'AZ' country code — returns invalid or out-of-scope
- Payment of $0.005 USDC not provided — 402 Payment Required response

## How this service works

Call when an agent needs whether an IBAN is a mod-97-valid AZ number of length 28. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-iban-az first.

## Output

Returns a boolean or structured result indicating whether the input string is a valid AZ-country IBAN: exactly 28 characters in length and passing the ISO 7064 mod-97-10 checksum algorithm.

## 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": [
    "AZ16AAAA00000000000000000000"
   ],
   "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-az-azerbaijan-mod-97-validator-463de482/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)