MCP.Market

Polish KYB MCP server

online · 100% uptime
by ContentWriterco·io.github.ContentWriterco/polish-kyb·v1.0.0
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Know-your-business checks for Polish companies: KRS, owners, insolvency, sanctions, gazette notices.

A89/100grade A
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Safety scan
A89/100

full report

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Polish KYB tools (12)

write = sends, deletes, buys or posts
  • get_companyFree

    Get the registry profile of one Polish company: name, legal form, address, industry (PKD), share capital, representation rules, recent registry changes, VAT status and headline financials for the latest filed period. Identify the company by name, KRS number or company tax number (NIP). For earlier years or full statements use get_financials.

  • get_company_articles_of_associationFree

    Get the text of a Polish company's articles of association or statute from the court register document repository. Use for questions about share transfers, pre-emption rights, voting rights, management board powers or company duration. Identify the company by name, KRS number or company tax number (NIP).

  • get_company_beneficiariesFree

    Get CRBR beneficial owners for a KRS company. All names are returned (same as zarząd / wspólnicy). PESEL is never included (birth_year only). JDG are not in CRBR.

  • get_company_court_gazetteFree

    Get notices about a Polish company published in the Court and Commercial Gazette (Monitor Sądowy i Gospodarczy): calls to creditors, liquidation, mergers and transformations. Identify the company by name, KRS number or company tax number (NIP).

  • get_company_debt_registryFree

    Get insolvency and restructuring proceedings of a Polish company from the National Debtors Register (KRZ). Identify the company by name, KRS number or company tax number (NIP).

  • get_company_financial_supervisionFree

    KNF register (Polish Financial Supervision Authority): licences and entries of a financial company — banks, payment / e-money institutions, investment firms, insurers, lending institutions, agents. Returns entries with kind, KNF number, status, registration / decision / strike-off dates and services. Keyed by NIP; null when the company has no KNF entry.

  • get_company_peopleFree

    Get people associated with a company — management board, supervisory board, shareholders, proxies. Returns display names, role labels, and relationship types (management, supervisory, ownership, procuration). Identify by name, KRS, or NIP.

  • get_company_sanctionsFree

    Official MSWiA sanctions listing for one company. Returns measures and legal grounds when the company is listed; null when it is not. Matched by KRS, NIP, or REGON. The same payload is included on get_company as sanctions.

  • get_company_secured_liabilitiesFree

    Secured liabilities from the latest financial-statement notes (period ending 2025+): mortgages (hipoteki), registered / financial pledges (zastawy), transfers of ownership, assignments — with creditor, amount, secured debt, asset and land-register (KW) numbers. Keyed by KRS; null when nothing is disclosed.

  • get_company_stock_marketFree

    Get Warsaw Stock Exchange listing for a company — ticker, ISIN, market (GPW main / NewConnect / GlobalConnect), last close and change, market cap, shares outstanding, TTM EPS, TTM P/E (falls back to last annual filing), last quarterly results, next earnings date, dividend per share and yield. Quotes delayed ~15 minutes, in PLN. Snapshot plus a few recent daily bars — not full OHLCV history. Keyed by NIP. Identify company by name, KRS, or NIP.

  • get_usageFree

    Get current billing period usage and remaining quota — mcp_queries, api_requests, export_companies, ask_ai_credits, watchlist_companies. Includes limits and reset date.

  • search_companiesFree

    Search and filter Polish KRS companies (spółki). Compabase also holds the full CEIDG/JDG register; this tool does not browse JDG — those without a public contact email are hidden because of RODO. Default `fields=summary` returns a compact row (name, NIP, KRS, location, PKD, latest financials, email/phone/website) — small enough for MCP clients. `fields=contacts_only` is name/NIP/KRS/city/email/phone/website only. `fields=full` returns every company_search column plus contacts and may exceed client size limits. Use for rankings, sector filters, city/county/region browsing, name search, or NIP/KRS lookup. When a PKD is mostly JDG, a sparse result includes a `hint` (full CEIDG is in the database; listing is RODO-gated). Do not call export_companies just to get a handful of emails or phones.

Public scan report

scanner v0.1.10 · 2026-10-09 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1291ms20/20
  • Tool poisoning12 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 89/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Polish KYB compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
89/100
higher than 80% of 48,273 servers
Tools
12
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
662 ms
faster than 22% of 30,037 servers

What its tools let an agent do: 12 read

Install Polish KYB in Claude Code, Cursor or VS Code

claude mcp add --transport http polish-kyb https://compabase.com/api/mcp/kyb
Add to Cursor

What the publisher says

From the Polish KYB repository's README, as published. We do not edit it. Read it on GitHub

Polish KYB MCP Server

Verify Polish business partners in one place: registry profile, management and shareholders, beneficial owners, insolvency and restructuring, court gazette notices, sanctions lists and financial supervision licences.

Remote MCP server (Streamable HTTP), read-only, hosted by Compabase.

https://compabase.com/api/mcp/kyb

Tools

Example prompts

  • Run a KYB check on the company with NIP 5260250995.
  • Who are the beneficial owners of KRS 0000028860?
  • Is this company in insolvency proceedings or on a sanctions list?

Authentication

Sign in with your Compabase account (OAuth) in clients that support it, or send an MCP key: create one at https://compabase.com/integrations?tab=mcp and pass it as Authorization: Bearer mcpk… or append ?apiKey=mcpk… to the URL. Queries count toward your Compabase plan.

Setup

Claude (claude.ai, Desktop): Settings → Connectors → Add custom connector → paste the URL above (add ?apiKey=mcpk_… if you use a key).

Cursor / VS Code / Windsurf (mcp.json):

{
  "mcpServers": {
    "polish-kyb": {
      "url": "https://compabase.com/api/mcp/kyb",
      "headers": { "Authorization": "Bearer mcpk_YOUR_KEY" }
    }
  }
}

ChatGPT: Settings → Apps → Developer mode → Create → paste the URL.

About

Part of the Compabase MCP family. Full Compabase MCP (all Polish company data tools): https://compabase.com/api/mcp.

Questions: contact@compabase.com

Gemini CLI

gemini extensions install https://github.com/ContentWriterco/Polish-KYB-MCP

Gemini CLI asks for your Compabase MCP key during installation (create one at https://compabase.com/integrations?tab=mcp).

Setup guides

Step-by-step setup guides for Claude, ChatGPT, Gemini, Grok, Le Chat, Perplexity, Cursor, VS Code and Claude Code: https://compabase.com/docs/mcp/connect/

Nothing above is checked by us. What we check is on the safety report.

Polish KYB: common questions

Is Polish KYB MCP server safe?
Yes, by our scan: it is graded A (89/100). Read the Polish KYB safety report
How do I install Polish KYB?
It runs remotely at compabase.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Polish KYB need an API key?
Yes. The registry entry asks for Authorization.
Is Polish KYB maintained?
The last commit was 24 days ago (2026-10-09). The latest release is v1.0.0.
Is Polish KYB up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Polish KYB?
Servers from other publishers that do the same job: Domain Liveness MCP server and Business Contact Finder MCP server.
How does Polish KYB compare with other MCP servers?
safety score 89/100 (higher than 80% of 48,273 servers); tools 12 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Polish KYB

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