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Saylor Innovations Data Desk – Poland VAT White List Verification
x402
Saylor Innovations Data Desk – Poland VAT White List Verification is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).
Verifies a Polish NIP tax number against the VAT White List, returning taxpayer name, VAT status, REGON, KRS, address, registered bank accounts, and virtual account flags
Price / call$0.01
Success—
StatusUnknown
How this service works
Verify a Polish NIP on the VAT White List - taxpayer name, VAT status, REGON, KRS, address, registered bank accounts and virtual account flag for payment checks
Output
A JSON object containing: the queried NIP, taxpayer name, VAT status string (e.g. 'Czynny'), vat_active boolean, REGON statistical number, KRS court register number, registered address, array of registered bank account numbers, total bank account count, has_virtual_accounts flag, removal and restoration dates if applicable, number of authorised representatives, data source attribution, request ID, and any caveat notes about reading the result.
Example use cases
Supplier payment compliance check
“Before I wire payment to this Polish supplier, can you verify NIP 7010123456 on the VAT White List and confirm their registered bank account and VAT status so we stay compliant?”
Onboarding new Polish contractor
“We're onboarding a new Polish contractor with NIP 9542340123 — can you pull their VAT White List entry and give me their company name, REGON, KRS, address, and VAT active status?”
Detecting virtual accounts on Polish invoice
“My Polish vendor sent an invoice with an unusual bank account number for NIP 6762498361 — can you check the VAT White List and tell me if they have virtual accounts registered so I know if it's legitimate?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/business/poland-vat?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative Polish VAT White List data for payment compliance, supplier onboarding, or invoice verification. It is the definitive source for confirming that a Polish counterparty's bank account is on the official white list before making a split-payment or B2B wire transfer. Prefer this over general business registry lookups when VAT status and registered bank account verification are specifically required for Polish regulatory compliance.
Side effects
- Invalid or non-existent NIP returns error or empty result
- NIP found but not on White List returns vat_active: false with removal context
- Network timeout or upstream MF API unavailability causes delayed or failed response
- Malformed NIP (not 10 digits) may return validation error
- Taxpayer has been removed and not restored — removal_date present, vat_active false
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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