# plreg Polish VAT Account Check

> plreg Polish VAT Account Check is a paid API for AI agents from plreg.x402utils.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Checks whether a given bank account number is assigned to a Polish company on the MF VAT whitelist, returning the verification result and a Ministry of Finance request ID.

## Facts

- Endpoint: GET https://plreg.x402utils.workers.dev/v1/pl-vat-account-check?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/plreg-polish-vat-account-check-268b2a77
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bNKuXKdGlnLyTgCgR6tVL

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 plreg-polish-vat-account-check-268b2a77
```

Example prompt: Before I pay this Polish supplier, can you check if their bank account 12345678901234567890123456 is actually assigned to NIP 1234567890 on the Polish MF VAT whitelist?

## When to prefer this

Use this endpoint when you need to verify that a specific Polish bank account is assigned to a known NIP on the official MF VAT whitelist — essential for split-payment compliance, supplier due diligence, or fraud prevention in Polish B2B transactions. Prefer this over manual MF portal lookups when automating accounts-payable workflows or vendor onboarding pipelines.

## Known failure modes

- Invalid or malformed NIP returns an error response
- Bank account not in 26-digit NRB format causes a validation error
- NIP not found in the MF registry returns assigned: false rather than an error
- Network or MF API outage may cause timeouts or 5xx errors
- Payment failure (insufficient USDC balance) blocks the request via x402 protocol

## How this service works

EU VAT validation (EC VIES) and Polish company registry lookups (MF VAT whitelist + KRS), paid per call via x402 (USDC on Base). Company-level data only; no personal data of natural persons is returned.

## Output

Returns a JSON object with an 'assigned' boolean indicating whether the provided bank account number is assigned to the given NIP on the Polish Ministry of Finance VAT whitelist, plus an 'mf_request_id' string for audit/traceability purposes.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "nip",
      "account"
     ],
     "properties": {
      "nip": {
       "type": "string"
      },
      "account": {
       "type": "string",
       "description": "26-digit NRB, spaces/PL prefix ok"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "assigned": true,
  "mf_request_id": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/plreg-polish-vat-account-check-268b2a77/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from plreg.x402utils.workers.dev](https://www.zero.xyz/host/plreg.x402utils.workers.dev/llms.txt)