MCP server

skanfirmy.pl

io.github.bartosz-kuc/skanfirmy

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

14

Token cost

About 2,784 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http skanfirmy https://skanfirmy.pl/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.skanfirmy]
url = "https://skanfirmy.pl/mcp"

Gemini CLI

{"mcpServers":{"skanfirmy":{"httpUrl":"https://skanfirmy.pl/mcp"}}}

Cursor

{"mcpServers":{"skanfirmy":{"url":"https://skanfirmy.pl/mcp"}}}

VS Code

{"servers":{"skanfirmy":{"type":"http","url":"https://skanfirmy.pl/mcp"}}}

Antigravity

agy mcp add skanfirmy https://skanfirmy.pl/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"skanfirmy","server_url":"https://skanfirmy.pl/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"skanfirmy","server_url":"https://skanfirmy.pl/mcp"}

Tools

• changes_since ~269 tokens
  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, name, address, krs, regon. For natural persons (entities with
• generuj_mikrorachunek ~159 tokens
  Generate 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
• list_observations ~167 tokens
  Return 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
• oblicz_odsetki ~236 tokens
  Calculate statutory or commercial (B2B) late-payment interest, broken down by NBP reference-rate periods.
• observe_nip ~218 tokens
  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. For natural persons running a business (entities without a KRS number) only the VAT status and m
• set_webhook ~182 tokens
  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 an empty url to disable. Requires a skanfirmy API key. Public
• sprawdz_lista_nip ~347 tokens
  Bulk-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_nip ~258 tokens
  Check 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_rachunek ~127 tokens
  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.
• sprawdz_regon ~240 tokens
  Look 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_vies ~187 tokens
  Validate 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).
• szukaj_katalog_api ~207 tokens
  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 scope or topic).
• szukaj_pkd ~84 tokens
  Search PKD 2025 business activity codes by activity name or code number.
• unobserve_nip ~103 tokens
  Stop watching a NIP — the watch is deleted right away. Requires a skanfirmy API key.

Browse

• GitHub tools
• Email
• Payments
• Legal research
• GitHub and code hosting

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