# Polish VAT Whitelist (MF) Company & Bank Account Verification

> Polish VAT Whitelist (MF) Company & Bank Account Verification is a paid API for AI agents from agentdata-api.sander-van-aard.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Checks a Polish company's VAT status and verifies whether a given bank account (NRB) is registered to that company in the official Ministry of Finance whitelist register.

## Facts

- Endpoint: POST https://agentdata-api.sander-van-aard.workers.dev/pl/company
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polish-vat-whitelist-mf-company-bank-account-verification-1e063193
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fAFy-0nfDZ7EZ958WeMu1

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 polish-vat-whitelist-mf-company-bank-account-verification-1e063193 -d '<json body>'
```

Example prompt: Before I pay this Polish invoice, check the VAT whitelist for company NIP 1234567890 and confirm that bank account NRB PL61109010140000071219812874 is actually registered to them in the Ministry of Finance register.

## When to prefer this

Use this endpoint when you need to perform the standard Polish invoice fraud check before paying a Polish supplier — specifically when you need to verify both VAT status and confirm a bank account (NRB) belongs to the company. This is the legally recommended check under Polish tax law. Prefer over generic company registries when the bank account verification is required.

## Known failure modes

- Invalid or non-existent NIP returns error or empty result
- Malformed NRB format causes validation error
- Company not found in VAT register returns no-match response
- Ministry of Finance API unavailable causes upstream timeout
- NRB not registered to the company returns negative match result

## How this service works

Polish VAT whitelist check (official Ministry of Finance register). Verifies a company's VAT status by NIP and — uniquely — whether a given bank account number (NRB) is registered to that company in the tax register: the standard Polish invoice-fraud check before paying a supplier. Returns VAT status, REGON/KRS, address, registered-account count and the official consultation confirmation id (request_id). Companies only.

## Output

Returns the company's VAT status (active/exempt/not registered), REGON and KRS identifiers, registered address, total count of registered bank accounts, whether the specified NRB is registered to that company, and an official request_id (consultation confirmation ID) from the Ministry of Finance whitelist API.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polish-vat-whitelist-mf-company-bank-account-verification-1e063193/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdata-api.sander-van-aard.workers.dev](https://www.zero.xyz/host/agentdata-api.sander-van-aard.workers.dev/llms.txt)