# Strale Invoice Verify Poland

> Strale Invoice Verify Poland is a paid API for AI agents from api.strale.io, paid per call via x402, $2.7/call, status unknown (last checked 2026-09-14).

Verifies the authenticity and legitimacy of a Polish invoice by cross-checking VAT number, KRS registration, IBAN/BIC banking details, sender domain, and email for fraud signals

## Facts

- Endpoint: POST https://api.strale.io/x402/v2/solutions/invoice-verify-pl
- Price: $2.7/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-invoice-verify-poland-52b99123
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bMHmbv2KLVmL-VsnK4mzV

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 strale-invoice-verify-poland-52b99123 -d '<json body>'
```

Example prompt: I just received an invoice from a Polish company — can you verify it's legitimate? The VAT number is PL1234567890, KRS is 0000123456, IBAN is PL61109010140000071219812874, BIC is WBKPPLPP, and the sender email is billing@firma-example.pl from the domain firma-example.pl.

## When to prefer this

Choose this endpoint when you need to verify the authenticity of a Polish invoice specifically, combining VAT registry, KRS company registration, IBAN/BIC banking validation, and sender identity checks in a single call with an auditable cryptographic record. Prefer this over generic VAT validators or IBAN checkers when you need multi-signal Polish invoice fraud detection with a tamper-evident audit trail, particularly in accounts payable automation, procurement compliance workflows, or when processing invoices from unfamiliar Polish vendors.

## Known failure modes

- Invalid VAT number format returns validation error for that field
- KRS number not found in Polish registry returns unverified status
- IBAN checksum failure flags banking detail as invalid
- Unreachable sender URL may result in redirect trace timeout
- Malformed invoice_data object returns schema validation error
- Missing all optional fields with no invoice_data returns insufficient data response

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns a structured verification result indicating whether each submitted field (VAT, KRS, IBAN, BIC, domain, email, URL) passes or fails validation, along with overall fraud risk signals, field-level status codes, and a cryptographically hashed audit record proving the check was performed at a specific point in time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bic": {
   "type": "string",
   "description": "BIC/SWIFT code from the invoice"
  },
  "iban": {
   "type": "string",
   "description": "IBAN from the invoice payment details"
  },
  "krs_number": {
   "type": "string",
   "description": "Polish KRS number"
  },
  "sender_url": {
   "type": "string",
   "description": "URL from the invoice for redirect tracing"
  },
  "vat_number": {
   "type": "string",
   "description": "VAT number from the invoice"
  },
  "invoice_data": {
   "type": "object",
   "description": "Structured invoice data for validation"
  },
  "sender_email": {
   "type": "string",
   "description": "Email address of the invoice sender"
  },
  "sender_domain": {
   "type": "string",
   "description": "Domain of the invoice sender"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-invoice-verify-poland-52b99123/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)