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Directory / firmy.ai: Polish company and person registers (KRS, CEIDG) for AI agents
firmy.ai: Polish company and person registers (KRS, CEIDG) for AI agents
by firmy.ai · https://firmy.ai/mcp
Polish companies and people: KRS, CEIDG, financials, boards, VAT, sanctions. Free, no API key.
12 of 12 checks · 2 Nov 2026
Is firmy.ai: Polish company and person registers (KRS, CEIDG) for AI agents MCP server safe?
- None of the hidden-instruction wordings we know were found in its tool descriptions.
- Its error messages showed no secrets or internal details.
- 5 of its 8 tools are labeled read-only; the others may change or send things.
- Overall it scored 98/100 on 2 Nov 2026.
A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.
What it can do
8 tools, in the server's own words.
search_companiesread-onlyZwraca listę firm z KRS pasujących do nazwy, NIP-u, numeru KRS albo REGON-u: id (numer KRS), nazwę, NIP, REGON, miasto, formę prawną, status i adres strony.
search_personsread-onlyZwraca listę osób z KRS o podanym imieniu i nazwisku: publiczny identyfikator "p-…" (id), imiona, nazwisko, liczbę powiązań z firmami i adres strony.
get_companyTryb darmowy czyta tylko to, co serwis już zna (sekcja spoza pamięci wraca jako "missing" z AUTH_REQUIRED); "id" to KRS, NIP, REGON, adres firmy.ai albo "p-…" …
get_personZwraca profil osoby z KRS (funkcje w firmach, bez daty urodzenia) i sekcje z "include" (bez "include": profile, shareholdings, co_managers, sanctions, bio) w j…
list_companiesread-onlyZwraca stronę 100 firm z listy tak, jak ją pokazują listy na stronie: według miasta, działu PKD (dwie cyfry), formy prawnej albo litery początkowej nazwy (lite…
rank_companiesread-onlyZwraca ranking firm według jednej miary: revenue (przychody), profit (zysk netto), growth (wzrost przychodów r/r), margin (marża netto), altman (wskaźnik Altma…
refresh_companyOdświeża dane firmy: unieważnia pamięć podręczną, ładuje ją od nowa razem ze sprawozdaniami, zapisuje wskaźniki i zwraca pola, które się zmieniły; ta sama blok…
get_accountread-onlyZwraca tryb, w jakim działasz (darmowy albo Pro), i czy jesteś zalogowany; w trybie darmowym także krótką instrukcję, jak korzystać z serwera.
Test results
Safe mode: only tools labeled read-only were run. How the test works
- !Fast enoughnote
1 warning
- !search_companies: Slowest tool: search_companies (5.4 s): users will notice the wait
- and 3 more
- !Follows MCP best practices (not scored yet)note
1 tip (not scored)
- !5 tools don't say whether they reach outside services like the web (openWorldHint): search_companies, search_persons, list_companies, rank_companies, get_account
- ✓ConnectsConnected in 585 mspass
- ✓Ready for the newest MCP versionUses the latest MCP version (2026-07-28)pass
- ✓Lists its toolsFound 8 toolspass
- ✓Every tool is describedAll 8 tools and their inputs are describedpass
- ✓Tools are labeled safe or dangerousEvery tool has a safety labelpass
- ✓No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.pass
- ✓Tools work with good inputspass
All good
- ✓search_companies: Worked (5.4 s)
- ✓search_persons: Worked (932 ms)
- ✓list_companies: Answered with an error, probably because of our sample input: Podaj co najmniej jedno z: city, pkd_division, legal_form. {"code":"INVALID_INPUT","message":"Podaj co najmniej jedno z: city, pkd_division…
- ✓rank_companies: Worked (1.1 s)
- ✓get_account: Worked (68 ms)
- –get_company: Not run: labeled as changing data
- –get_person: Not run: labeled as changing data
- –refresh_company: Not run: labeled as changing data
- ✓Bad inputs give a clean errorpass
All good
- ✓search_companies: Refused missing required input "query" with a clear error
- ✓search_companies: Refused wrong type for "query" with a clear error
- ✓search_persons: Refused missing required input "query" with a clear error
- ✓search_persons: Refused wrong type for "query" with a clear error
- ✓list_companies: Refused wrong type for "city" with a clear error
- ✓rank_companies: Refused missing required input "metric" with a clear error
- ✓rank_companies: Refused wrong type for "metric" with a clear error
- ✓No secrets leakedChecked 8 error messages: no secrets or internal detailspass
- ✓Resources and prompts workOpened 2 of 2 promptspass
- –Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)not tested
Test it yourself
Free and open source. Same checks, same score.
npx qamcp-cli https://firmy.ai/mcpShow this score on GitHub
Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.
[](https://qamcp.dev/s/ai-firmy-mcp.html)Score over time
- 2 Nov 202698
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use firmy.ai: Polish company and person registers (KRS, CEIDG) for AI agents, signed in with GitHub, one per person. Reviews never change the score.
QAmcp Monitor tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. Free for 1 server, no card.
Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works