Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
제작자가 쓴 설명(영어 원문)
Verify Polish companies by NIP/KRS/REGON + EU VAT (VIES). 14 MCP tools (9 no-key).
이 세 가지는 절대 하나의 점수로 합치지 않아요. 의견, 측정, 인기는 서로 다른 것이니까요.
이 서버는 아직 쉬운 말로 된 요약을 쓰지 못했어요. 아래는 레지스트리에서 읽어 온 사실이에요.
쓰고 있는 AI 앱을 고른 다음 설정을 복사하세요.
필요한 것
어떤 앱을 쓰세요?
위에서 앱을 고르세요. 기억해 두었다가 다음부터는 버튼에 “…에 설치”라고 표시해요.
웹, 데스크톱, 모바일의 Claude에서 쓸 수 있어요:
https://skanfirmy.pl/mcp터미널에서 이 명령어를 실행하세요
claude mcp add --transport http skanfirmy https://skanfirmy.pl/mcp프로젝트의 .cursor/mcp.json 또는 ~/.cursor/mcp.json에 붙여 넣으세요
{
"mcpServers": {
"skanfirmy": {
"url": "https://skanfirmy.pl/mcp"
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
프로젝트의 .vscode/mcp.json에 붙여 넣으세요
{
"servers": {
"skanfirmy": {
"type": "http",
"url": "https://skanfirmy.pl/mcp"
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
ChatGPT는 인터넷에 있는 서버에만 연결할 수 있어요:
https://skanfirmy.pl/mcp메뉴 이름은 요금제나 시기에 따라 조금 다를 수 있어요.
선택한 앱은 이 기기의 쿠키에만 저장돼요. 계정은 필요 없어요.
이 설정은 제작자의 레지스트리 정보로 만들었어요. README와 다르면 README를 따르세요.
도구 이름과 설명은 서버가 2026년 11월 8일에 알려 준 그대로예요. 우리가 아니라 제작자가 쓴 글이고, 일반 텍스트로만 보여 드려요.
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
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
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 per
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/mikrorachu
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
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
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 pe
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 skanf
누구나 볼 수 있는 정보를 점검했고, 코드는 읽지 않았어요. 해당하지 않는 항목은 개수에서 뺐어요. · 2026년 11월 9일 점검
레지스트리 이름이 GitHub 계정 bartosz-kuc 기준으로 확인되었고, 이 계정이 저장소를 소유하고 있어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
147ms 만에 응답(HTTP 200)
로그인 필요 없음
도구 설명 14개를 읽었고, AI에게 보내는 숨겨진 지시는 없었어요
레지스트리에서 이 카테고리의 활성 서버 전체와 비교했어요. 스타는 게시자가 저장소를 소유한 경우에만 세요.
해당하는 기본 점검 3개 중 3개를 통과했어요. 코드는 읽지 않았어요. 키나 토큰을 넣기 전에 서버가 어떤 권한을 요구하는지 확인하고, 꼭 필요한 권한만 있는 키를 쓰세요.
레지스트리에 필수 키가 나와 있지 않아요. 다만 처음 쓸 때 로그인을 요구하는 서버도 있어요.
제작자의 클라우드에서 실행돼요. 설치 없이 인터넷으로 연결하지만, 보내는 내용은 제작자의 서버를 거쳐요.
GitHub 저장소는 마지막으로 – 변경됐고, 최신 버전(1.4.0)은 38일 전 레지스트리에 올라왔어요.
Claude Desktop, Claude Code, Cursor, VS Code처럼 MCP를 지원하는 앱에서 쓸 수 있어요. URL로 연결되기 때문에, 원격 MCP 서버를 지원하는 앱(예: 개발자 모드의 ChatGPT)에서도 쓸 수 있어요.
같은 카테고리에는: Spec Driven Development, Remote Desktop Commander, awardlanes
같은 카테고리에서 다른 제작자가 만든 서버예요. 스타 순으로 정렬했어요.
카드 보는 법:↓ 주간 다운로드i★ GitHub 스타i세 기둥: 리뷰 · 점검 · 사용 정도i업데이트 = 최신 버전을 레지스트리에 공개한 날i
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
제작자의 저장소에서 쓰인 그대로 가져왔어요. PopNx MCP가 검토하거나 보증한 내용이 아니에요. HTML, 이미지, 스크립트는 제거했어요. 링크를 누르면 이 사이트를 벗어나요.
A free, stateless MCP (Model Context Protocol) server that lets AI agents verify Polish companies and validate EU VAT numbers directly from official government registers. No key and no registration for the lookups; per-IP rate limits apply (see Limits and personal data).
https://skanfirmy.pl/mcp (JSON-RPC 2.0 over Streamable HTTP)Made by [Bartosz Kuć](https://skanfirmy.pl) — the same person behind skanfirmy.pl and the otwarteAPI.pl catalog of Polish & EU public APIs.
| Tool | What it does |
|---|---|
sprawdz_nip | VAT status (Biała Lista) + KRS data for a company by NIP |
sprawdz_lista_nip | Bulk lookup of up to 30 NIPs in one call (MF VAT Register) |
sprawdz_regon | REGON registry data (GUS) by NIP; for sole traders and other natural persons only name, legal form, entity type, town and activity status |
sprawdz_vies | Validate an EU VAT number via VIES (European Commission) |
sprawdz_rachunek | Is a bank account on the VAT White List for a given NIP |
generuj_mikrorachunek | Individual tax micro-account (PIT/CIT/VAT) from a NIP; the formula for a PESEL is in the tool description, to compute locally |
szukaj_pkd | Search the PKD 2025 business-activity classification |
oblicz_odsetki | Statutory / commercial (B2B) late-payment interest calculator |
szukaj_katalog_api | Search otwarteAPI.pl — a catalog of other public PL/EU APIs |
Monitoring tools (need a skanfirmy API key, which you get after confirming a sign-up at skanfirmy.pl/monitoring): observe_nip, unobserve_nip, list_observations, changes_since, set_webhook.
error.data.contact) for 10 seconds. REST endpoints: at most 20 requests per 10 seconds, then HTTP 429 for 10 seconds. The service is meant for single lookups started by users or their agents, not for bulk data harvesting.sprawdz_rachunek (REST: POST /rachunek).restricted: true with a fixed sentence and a link to the Ministry of Finance search, with no data and no fields about validity, VAT status or presence in the register. Send the user to the official search.Any MCP client that supports remote (Streamable HTTP) servers — point it at:
https://skanfirmy.pl/mcp
Claude Desktop / stdio-only clients — bridge with mcp-remote:
{
"mcpServers": { "skanfirmy": { "command": "npx", "args": ["-y", "mcp-remote", "https://skanfirmy.pl/mcp"] } } }
Raw JSON-RPC (no MCP client needed):
# list tools
curl -s https://skanfirmy.pl/mcp \ -H 'Content-Type: application/json' \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
curl -s https://skanfirmy.pl/mcp \ -H 'Content-Type: application/json' \ -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"sprawdz_nip","arguments":{"nip":"5261040828"}}}'
For agents/crawlers that just want a URL:
GET https://skanfirmy.pl/nip/{nip} — VAT + KRSGET https://skanfirmy.pl/nips/{comma,separated,nips} — bulk (≤30)GET https://skanfirmy.pl/regon/{nip} — REGON registry dataGET https://skanfirmy.pl/vies/{country}/{number} — EU VAT (VIES)POST https://skanfirmy.pl/rachunek — is one bank account on the White List for a NIPAdd ?format=json for JSON. Full docs: skanfirmy.pl/llms.txt, OpenAPI: skanfirmy.pl/openapi.yaml.
Prefer a drop-in Agent Skill? skill/ holds `verify-polish-company` — a single SKILL.md that teaches Claude Code, the Claude apps or the Agent SDK when and how to call the endpoints above (no key, nothing to run beyond ordinary HTTP):
cp -R skill ~/.claude/skills/verify-polish-company
See skill/README.md for details.
VAT Register / Biała Lista (Ministry of Finance), KRS (Ministry of Justice), REGON / BIR (Statistics Poland — GUS), VIES (European Commission). Independent project — not affiliated with any of them. What the service stores and for how long is described in its privacy policy.
Bartosz Kuć · skanfirmy.pl · github.com/bartosz-kuc · linkedin.com/in/bartosz-kuc · cal.com/bartosz-kuc
MIT © Bartosz Kuć. This repository documents the hosted server and holds its MCP registry manifest; the server itself runs at https://skanfirmy.pl/mcp.