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Polish VAT Whitelist (MF) Company & Bank Account Verification
x402
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.
Price / call$0.01
Success—
StatusUnknown
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.
Example use cases
Validate supplier before payment processing
“We're about to wire funds to a new Polish vendor. Can you verify their VAT status using NIP 5272441971 and confirm that their bank account PL48102010260000042127123456 is officially registered to them in the Ministry of Finance whitelist?”
Prevent invoice fraud in accounts payable
“I received an invoice from a Polish company but the bank details look suspicious. Check if NIP 6762433657 is VAT-active and whether the account number PL21249000050000400038123456 they're asking us to pay is legitimately registered to their business.”
Onboard and verify new suppliers
“We're considering a new Polish supplier and need to do due diligence. Look up their VAT registration status with NIP 1234567890 and verify that the NRB PL61109010140000071219812874 they provided in their contract actually belongs to them according to the official register.”
Technical details
Endpoint
POSThttps://agentdata-api.sander-van-aard.workers.dev/pl/companyWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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