Connect skanfirmy.pl and your agent gets 14 tools, among them changes_since, generuj_mikrorachunek, list_observations. It answers at https://skanfirmy.pl/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 21 October 2026, succeeded.
Verify Polish companies by NIP/KRS/REGON + EU VAT (VIES). 14 MCP tools (9 no-key).
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
changes_since | Return 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, n Inputs: since, api_key |
generuj_mikrorachunek | Generate the individual tax micro-account (for PIT/CIT/VAT payments) from a NIP or PESEL. Inputs: identyfikator |
list_observations | Return the list of NIPs you monitor, with their current VAT status and last-checked date. 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 (boole Inputs: api_key |
oblicz_odsetki | Calculate statutory or commercial (B2B) late-payment interest, broken down by NBP reference-rate periods. Inputs: kwota, dataOd, dataDo, typ |
observe_nip | Add 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. Requires a skanfirmy API key (Author Inputs: nip, api_key |
set_webhook | Set (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 a Inputs: url, api_key |
sprawdz_lista_nip | Bulk-check up to 30 NIPs in one call to the Ministry of Finance VAT White List: VAT status, bank accounts, REGON, KRS and address of each entity. For verifying a portfolio of counterparties. Ministry limits: max 30 NIPs per call, about 500 Inputs: nipy |
sprawdz_nip | Check VAT status (VAT White List / Biała Lista) and KRS data for a Polish company by NIP. Inputs: nip |
sprawdz_rachunek | Check whether a bank account number (NRB) appears in the VAT White List for a given NIP. Due diligence for payments above PLN 15,000. Inputs: nip, numerRachunku |
sprawdz_regon | Look up entity data in the REGON register (Statistics Poland / GUS BIR) by NIP: REGON number, official name, legal form (legal or natural person), full address (voivodeship, county, municipality). Covers ALL entities, including sole proprie Inputs: nip |
sprawdz_vies | Validate a counterparty's EU VAT number in the VIES system (European Commission). Inputs: countryCode, vatNumber |
szukaj_katalog_api | Search 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 sc Inputs: zapytanie, zasieg, temat |
szukaj_pkd | Search PKD 2025 business activity codes by activity name or code number. Inputs: zapytanie |
unobserve_nip | Remove a NIP from monitoring. Requires a skanfirmy API key. Inputs: nip, api_key |
Every block below points at https://skanfirmy.pl/mcp. Pick your client and copy.
claude mcp add --transport http skanfirmy-pl https://skanfirmy.pl/mcp
{
"mcpServers": {
"skanfirmy-pl": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://skanfirmy.pl/mcp"]
}
}
}{
"mcpServers": {
"skanfirmy-pl": {
"url": "https://skanfirmy.pl/mcp"
}
}
}{
"servers": {
"skanfirmy-pl": {
"type": "http",
"url": "https://skanfirmy.pl/mcp"
}
}
}{
"context_servers": {
"skanfirmy-pl": {
"url": "https://skanfirmy.pl/mcp"
}
}
}{
"mcpServers": {
"skanfirmy-pl": {
"serverUrl": "https://skanfirmy.pl/mcp"
}
}
}{
"mcpServers": {
"skanfirmy-pl": {
"url": "https://skanfirmy.pl/mcp"
}
}
}name: skanfirmy.pl
version: 0.0.1
schema: v1
mcpServers:
- name: skanfirmy.pl
type: streamable-http
url: https://skanfirmy.pl/mcp{
"mcpServers": {
"skanfirmy-pl": {
"httpUrl": "https://skanfirmy.pl/mcp"
}
}
}{
"mcpServers": {
"skanfirmy-pl": {
"type": "http",
"url": "https://skanfirmy.pl/mcp"
}
}
}{
"mcpServers": {
"skanfirmy-pl": {
"url": "https://skanfirmy.pl/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fskanfirmy.pl%2Fmcp&type=streamable_http&id=skanfirmy-pl&name=skanfirmy.pl
It answered our last check on 21 October 2026 in 183 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
14, as returned by the server's own tools/list on 13 September 2026: changes_since, generuj_mikrorachunek, list_observations, oblicz_odsetki, observe_nip, set_webhook, sprawdz_lista_nip, sprawdz_nip, and 6 more.
It answered our last check on 21 October 2026 in 183 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://skanfirmy.pl/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.bartosz-kuc. Endpoint host: skanfirmy.pl. ARD identifier: urn:air:io.github.bartosz-kuc:mcp:skanfirmy.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.