skanfirmy.pl

io.github.bartosz-kuc/skanfirmy · v1.4.0 · finance-and-payments

skanfirmy.pl is healthy: it completed an MCP handshake in 881 ms and exposes 14 tools.

Verify Polish companies by NIP/KRS/REGON + EU VAT (VIES). 14 MCP tools (9 no-key).

Endpoint: https://skanfirmy.pl/mcp (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count14
Latency881 ms
Last checked (UTC)2026-10-16T06:45:43.232Z

Health history

Checked (UTC)StatusLatencyError
2026-10-16T06:45:43.232ZHealthy881
2026-10-15T03:00:35.001ZHealthy2474

Tools (14)

sprawdz_nipCheck VAT status (VAT White List / Biała Lista) and KRS data for a Polish company by NIP. For entities without a KRS number (sole proprietors and civil partnerships, i.e. natural persons) personal data is limited (GDPR): the address is reduced to the town (the White List does not say whether it is a
sprawdz_lista_nipBulk-check up to 30 NIPs in one call to the Ministry of Finance VAT White List: VAT status, bank accounts, REGON, KRS number and address of each entity. For entities without a KRS number (natural persons) the address is reduced to the town and bank accounts to their count, and no REGON number or reg
sprawdz_regonLook up entity data in the REGON register (Statistics Poland / GUS BIR) by NIP: REGON number, official name, legal form (legal or natural person), address (voivodeship, county, municipality). Covers ALL entities, including sole proprietors that are not in the KRS. For natural persons (GUS type F / L
sprawdz_viesValidate a counterparty's EU VAT number in the VIES system (European Commission). For Polish (PL) numbers the address is reduced to the town, because the number may belong to a natural person (GDPR).
sprawdz_rachunekCheck whether a bank account number (NRB) appears in the VAT White List for a given NIP. Due diligence for payments above PLN 15,000.
generuj_mikrorachunekGenerate the individual tax micro-account (for PIT/CIT/VAT payments) from a NIP. The server does not accept PESEL (personal ID) — for a PESEL compute it locally: BBAN = "101000712221" + PESEL + "0", IBAN = "PL" + ISO 7064 mod-97 check digits + BBAN (or use skanfirmy.pl/mikrorachunek, which computes
szukaj_pkdSearch PKD 2025 business activity codes by activity name or code number.
oblicz_odsetkiCalculate statutory or commercial (B2B) late-payment interest, broken down by NBP reference-rate periods.
szukaj_katalog_apiSearch otwarteAPI.pl, a catalog of public Polish and EU APIs (VAT, KRS, GUS, NBP, ECB, Eurostat and more). Returns matching entries with a link to each API's official docs. An empty query returns the whole catalog (optionally narrowed by scope or topic).
observe_nipAdd a NIP to monitoring. You get notified (via changes_since or email) when its VAT status, bank account, or registry data shown on the Ministry of Finance White List (name, address, KRS, REGON) changes. For natural persons running a business (entities without a KRS number) only the VAT status and m
unobserve_nipStop watching a NIP — the watch is deleted right away. Requires a skanfirmy API key.
list_observationsReturn the list of NIPs you monitor, with their current VAT status and last-checked date (name is null for natural persons running a business). Each entry keeps the raw Ministry of Finance literal in status_vat and, when a status is known, adds derived language-neutral fields vat_active (boolean) an
changes_sinceReturn changes (VAT status, bank accounts, or registry data — name, address, KRS, REGON — from the White List) detected since a given date for the NIPs you monitor. The field property is one of: status_vat, account_added, account_removed, name, address, krs, regon. For natural persons (entities with
set_webhookSet (or clear) a push webhook URL for your monitoring, instead of or in addition to polling. When we detect a change for a monitored NIP, we send a POST signed with HMAC-SHA256 (X-Skanfirmy-Signature header). Returns the secret ONCE. Pass an empty url to disable. Requires a skanfirmy API key. Public