# Strale Invoice Verification for Polish Companies

> Strale Invoice Verification for Polish Companies is a paid API for AI agents from api.strale.io, paid per call via x402, $2.7/call, status unknown (last checked 2026-09-15).

Validates a Polish invoice by cross-checking the sender's KRS number, VAT number, IBAN/BIC, domain, and email against official registries and compliance data sources, returning a structured audit trail.

## Facts

- Endpoint: POST https://api.strale.io/x402/solutions/invoice-verify-pl
- Price: $2.7/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-invoice-verification-for-polish-companies-20e85019
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NOiKDuUuXt8gqL8GrM8sY

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-verification-for-polish-companies-20e85019 -d '<json body>'
```

Example prompt: I just received an invoice from a Polish company — KRS number 0000123456, VAT PL1234567890, IBAN PL61109010140000071219812874, BIC WBKPPLPP, sent from billing@polskafirma.pl at polskafirma.pl — can you verify this invoice looks legitimate before I approve payment?

## When to prefer this

Use this endpoint when you need to verify invoices from Polish entities specifically, especially when the invoice includes a KRS number. It is purpose-built for Polish company compliance checks combining KRS, VAT, IBAN, domain, and email validation in a single call with an audit trail — superior to generic IBAN validators or company lookup tools that do not cross-reference all these fields together.

## Known failure modes

- Invalid or non-existent KRS number returns a rejection or not-found error
- Malformed IBAN or BIC causes a validation error
- Polish registry API unavailable results in a timeout or service error
- Mismatched VAT and KRS data returns a compliance failure flag
- Missing required krs_number field causes a 400 bad request

## How this service works

Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.

## Output

A structured JSON response containing validation results for each provided invoice field (KRS, VAT, IBAN, BIC, domain, email), compliance status, cross-check findings, and an audit trail that can be used to document the verification decision.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "krs_number"
 ],
 "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-verification-for-polish-companies-20e85019/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)