Search 3M+ Polish companies by financials, ownership, industry, and regulatory status.
Access KRS and CEIDG registry data for Polish companies including financials, ownership structures, management, public aid, EU funding, procurement records, energy licenses, and stock market data. Supports bulk export and custom SQL queries.
Try asking Muse: "Find all manufacturing companies in Warsaw with revenue over 5 million PLN and export their contact details."
Source: Found in the official MCP Registry (io.github.ContentWriterco/compabase) · First listed September 25, 2026
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Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://compabase.com/api/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Compabase is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
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In Claude, open Settings, then Connectors.
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https://compabase.com/api/mcpResponse time at the last check: 168ms. Worked in 97.7% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
request_signupStart Compabase account setup for an email. Sends a magic link. After the user clicks it, check_signup with the returned setup_id reports status ready and returns the MCP key automatically. No key has to be generated in the portal. No auth required.check_signupPoll a request_signup session. When the user has confirmed email, returns mcp_key once and cursor_mcp_json to write to MCP config. Call every 3 seconds until status is ready, expired, or already_delivered. No auth required.list_plansList Compabase billing plans and limits. No auth required. After sign-up, use upgrade_plan to get a Stripe Checkout URL.search_companiesSearch 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, latesget_companyGet company registry profile and headline financials for one latest filed period (`financials.period_to` / `financial_period_to`): revenue, profit, costs, assets, estimated_value (Ohlson/RIM equity estimate), PKD, address, plus contacts when on record, full address, share capitalget_financialsGet full financial statement metrics per fiscal period — all entity_financial_metrics columns. Includes cash_and_equivalents, inventories, receivables, liabilities, equity, cost breakdown, revenue lines. Identify company by name, KRS, or NIP.get_company_peopleGet 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.count_companiesCount KRS companies matching given filters. Returns a single number — no company list. Does not count JDG in this tool (full CEIDG is in Compabase; listing is RODO-gated). Sparse or zero counts in JDG-dominated PKDs include a `hint`.execute_sqlExecute a read-only SQL SELECT query against the Compabase database. Use when dedicated tools are not enough (aggregations, joins, custom analysis). Returns at most row_limit rows per call depending on the plan (Free 100, Pro 500, Scale 1000); if truncated is true, the full resulget_company_rankingsGet a company's revenue rank positions within its industry (PKD), region (voivodeship), and all of Poland. Returns rows from company_financial_rankings — one row per scope (pkd_full, pkd_division, pkd_section, region, country). PKD scope keys of historical classifications are preget_financial_statsGet precomputed aggregate financial statistics for a sector, region, PKD branch, or country. Returns median, p25/p75/p90, winsorized mean, mean, total, n_companies, min/max. Use for questions like: what is the median revenue / average profit / assets in industry X or region Y? meget_company_public_aidGet SUDOP public aid / grants for a company — full case list with amounts, grantor, measure, purpose. Keyed by NIP. Identify company by name, KRS, or NIP.get_company_eu_fundsGet European Funds (Fundusze Europejskie) projects for a company — official MFiPR lists, EU co-financing, programme and dates. Keyed by NIP. Identify company by name, KRS, or NIP. Cohesion/shared-management funds; not TED procurement, not FTS Commission grants, and not SUDOP statget_company_procurementGet European Commission FTS awards for a company — Horizon, LIFE, Erasmus and other direct/indirect-management grants. Keyed by NIP (VAT). Identify by name, KRS, or NIP. Not cohesion funds (get_company_fe) and not TED procurement.get_company_public_tendersGet BZP public procurement data — full awards as contractor and notices as buyer, with award values. Keyed by NIP. Identify company by name, KRS, or NIP.get_company_energy_licensesGet URE energy concessions for a company — full list of electricity, gas, heat, and liquid fuels, with validity dates and pending applications. Keyed by NIP. Identify company by name, KRS, or NIP.get_company_public_contractsGet contracts from Poland's Central Register of Contracts (CRU JSFP, Ministry of Finance) where the company is the contractor of a public-sector unit (ministries, municipalities, schools, hospitals) — count, total value, top public buyers and the 50 most recent contracts (date, sget_company_nfz_contractsGet contracts between the company (as a healthcare provider) and Poland's National Health Fund (NFZ) — value of NFZ contracts in the latest year and every year since 2008, types of care (hospital, outpatient, dental, rehabilitation, pharmacy etc.) with NFZ regional branch, and thget_company_groupGet the corporate group of a Polish company from the global LEI register (GLEIF), supplemented with foreign corporate shareholders from KRS matched to it: direct parent and ultimate parent (name, country, LEI), subsidiaries and other group companies — Polish ones with KRS number,get_company_nfz_queuesGet NFZ (National Health Fund) waiting lists of a healthcare provider — every NFZ-funded service (specialist clinics, diagnostics such as MRI/CT, procedures, rehabilitation, hospital wards) it runs a waiting list for, per location: NFZ forecast waiting time for stable and urgent get_company_trademarksGet Polish Patent Office (UPRP) trademarks owned or applied for by the company — mark name, application number, Nice classes, status (protected / pending / expired / refused), filing, registration and expiry dates, plus counts. Owners are matched by company name and city (UPRP doget_company_procurement_disputesGet National Appeal Chamber (Krajowa Izba Odwoławcza, KIO) rulings in public procurement disputes involving the company — as appellant (with upheld / dismissed / discontinued / rejected counts), as participant or as contracting authority — with case numbers, dates, other party anget_company_waste_registryGet BDO waste and packaging register data — registration number, EUP site count, activity flags, and headquarters decisions with issue and validity dates. Keyed by NIP. Identify company by name, KRS, or NIP.get_company_stock_marketGet 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 shaget_company_eu_tendersGet TED EU-threshold public procurement — full awards as contractor and notices as buyer. Keyed by NIP. Identify company by name, KRS, or NIP.get_company_court_gazetteGet Court and Commercial Gazette (MSiG) notices for one company. Matched by KRS or NIP (creditor calls, dissolution, mergers, liquidation).get_company_sanctionsOfficial 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_debt_registryGet KRZ insolvency / restructuring proceedings. KRS companies via company_krz; sole proprietors via CEIDG KRZ by NIP.get_company_financial_supervisionKNF 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-ofget_company_website_factsFacts read from the company's own website: opening hours (per weekday), branches/locations with addresses, offer (CPV divisions plus short product/service names in PL/EN/DE), certifications found on the site (ISO 9001, HACCP, FSC…), website technology (CMS, e-commerce platform, pget_company_procurement_counterpartiesPublic procurement counterparties of a company from BZP, TED and CRU: the buyers it most often wins contracts from, the contractors it most often awards contracts to, and its consortium partners — each with KRS (when known), number of contracts, total value (PLN/EUR/USD) and yearget_company_filing_timelinessFinancial statement filing timeliness from KRS register entries (date each annual statement was filed) and the Financial Document Repository: for each recent financial year the period end, filing date, statutory deadline (year end + 6 months + 15 days), days late or not filed, anget_company_secured_liabilitiesSecured 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; nullget_company_real_estateCompany real estate from the latest financial statement (period ending 2025+): land incl. perpetual usufruct, buildings and premises, investment property (book values in PLN/EUR/USD) plus property locations named as mortgage collateral (address, land-register KW numbers, creditorget_company_beneficiariesGet 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_articlesGet full text of the company's articles of association or statute (umowa spółki / statut) from RAR (Repozytorium Akt Rejestrowych). Use when the user asks about: share transfer consent, preemption rights, non-compete clauses, company duration, voting rights, special share classesget_usageGet current billing period usage and remaining quota — mcp_queries, api_requests, export_companies, ask_ai_credits, watchlist_companies. Includes limits and reset date.get_planGet the user's active billing plan details — plan name, price, status, limits, prepaid credit balance, and billing period reset date.list_watchlistList companies on the user's watchlist with company data (name, KRS, NIP, revenue, city). Supports pagination via limit/offset.add_to_watchlistAdd a company to the user's watchlist. Identify by KRS (10-digit) or NIP (10-digit). Supports both KRS companies and CEIDG sole proprietorships (via NIP).https://compabase.com/api/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Compabase to help me. It is a free service with an MCP server at https://compabase.com/api/mcp. It needs an API key from ContentWriterco; ask me to enter it through your secure credential prompt. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 13:00 UTC) the endpoint was working, answering in 168ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 40 tools, including request_signup, check_signup, list_plans, search_companies. For example, you could ask Muse: "Find all manufacturing companies in Warsaw with revenue over 5 million PLN and export their contact details."
This listing was added from public sources (Found in the official MCP Registry (io.github.ContentWriterco/compabase)). If you build Compabase, claim it to correct the details and get your badge.
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