# Ukrainian IBAN Mod-97 Validator

> Ukrainian IBAN Mod-97 Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Validates whether a given string is a mod-97-compliant Ukrainian (UA) IBAN of exactly 29 characters

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/check-iban-ua?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ukrainian-iban-mod-97-validator-74ef9bb0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7wSmItJVP3qpVX2-Pc__Z

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 ukrainian-iban-mod-97-validator-74ef9bb0 -d '<json body>'
```

Example prompt: Can you check whether UA903052992990004149123456789 is a valid Ukrainian IBAN — does it pass the mod-97 check and is it the right length?

## When to prefer this

Use this endpoint when you specifically need to validate a Ukrainian (UA) IBAN, which must be exactly 29 characters and pass the mod-97 checksum algorithm. Prefer the free sandbox endpoint POST /v1/sandbox/check-iban-ua first for testing; use this paid endpoint in production workflows. Do not use this for IBANs from other countries — sibling endpoints exist for LB, LI, MC, MD, ME, NL, PT, QA, SC, SE, and others.

## Known failure modes

- Empty or missing value field returns validation error
- IBAN with correct country prefix but wrong length is rejected
- Non-UA country code IBANs return invalid (this endpoint is UA-specific only)
- Malformed JSON body returns 400-level error
- Insufficient USDC balance triggers x402 payment-required response

## How this service works

Call when an agent needs whether an IBAN is a mod-97-valid UA number of length 29. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ua first.

## Output

A boolean or structured response indicating whether the submitted string is a valid mod-97 Ukrainian (UA) IBAN of 29 characters, including pass/fail status and optionally the reason for failure (wrong length, failed checksum, etc.)

## 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": [
    "UA55AAAA000000000000000000000"
   ],
   "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/ukrainian-iban-mod-97-validator-74ef9bb0/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)