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MGBI Products Public Registers API

Public Registers API

Automate data retrieval from public registers

Retrieve current data from databases maintained by public institutions.

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Data sources

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National Court Register API – Entity Search

Automate data retrieval from the KRS Entity Search.
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National Court Register API – Financial Documents Repository

Automate the retrieval of financial statements from the KRS Financial Documents Repository.
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National Register of Debtors API – Entity Search

Automate data retrieval from the KRZ Entity Search Engine.
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List of VAT Payers API

Automate the retrieval of data from the VAT Taxpayer Registry.
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Central Register of Ultimate Beneficial Owners API – Entity Search

Automate the retrieval of data from the Central Register of Beneficial Owners.
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Court and Commercial Gazette (MSIG)

Automate the retrieval of content from the Court and Economic Monitor.
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Automated data acquisition from public registers via API

Get access to an application programming interface (API) that allows you to automate the retrieval of data from public registries and records.

With our API, you can easily populate your applications, systems, and databases with information about your business partners’ activities sourced from a variety of sources, such as business registries, financial statement databases, insolvency and bankruptcy registries, VAT taxpayer registries, data sources for AML/KYC/Compliance, data sources on tenders and grants, property registries, industry registries and records, and other sources.

Public register databases – highest quality

We process data collected from all major business registers and records maintained by Polish public institutions. We guarantee higher data quality, greater operational stability, and support for integration with any IT systems.

We enable both the download of individual records and the continuous synchronization of complete copies of logs. We also provide the ability to retrieve up-to-date data from selected sources in real time.

Automated data retrieval from public institution registers – your time-saving solution

Instead of wasting time manually searching for information, focus on analyzing it and making sound business decisions. Use our APIs to automate KYB, risk assessment, and receivables management processes in your company!

For more information, please refer to our API documentation.

For whom is automated data acquisition from public registers intended?

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Banks and other financial institutions

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Loan companies

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Duże i średnie przedsiębiorstwa

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AML Departments

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Risk Assessment Departments

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Companies specializing in accounts receivable management

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Companies and debt collection departments

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Law firms

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Mortgage advisors and brokers

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Auditing firms

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Investment funds

Why opt for Public Registers API?

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Automated access to critical data

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The API allows you to quickly and directly retrieve information from the most important business registries and records. By automating data access, you’ll eliminate the need to search for information manually.

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Continuous data updating and integrity

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Every day, we retrieve fresh data directly from the sources, ensuring that it is up-to-date and accurate. We verify the data and correct any errors we find.

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One interface for multiple sources

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The API allows you to retrieve data from multiple sources used in KYC, risk assessment, and receivables management processes. You don’t have to waste time integrating with each registry individually.

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Seamless integration with CRM, ERP, and compliance systems

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The ability to integrate your existing IT systems with our API will allow you to streamline your daily processes and increase their efficiency.

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High operational stability

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We guarantee greater service stability and resilience against technical issues in source registries. Maintenance outages in government databases will not disrupt your processes.

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Comprehensive technical support at every stage

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We’ll help you plan and implement integration with our API. We’ll also provide ongoing support and technical assistance throughout our partnership.

Public registers and databases accessible via API

Business Registers

  • National Court Register (KRS)
  • KRS Registry Records Repository (RAR KRS)
  • Central Register and Information on Economic Activity (CEIDG)
  • National Official Register of Economic Entities (REGON)

Financial statement databases

  • KRS Financial Documents Repository (RDF KRS)
  • Database of financial and operational reports of public benefit organizations

Insolvency and Bankruptcy Registers

  • National Debt Registry (KRZ)
  • Court and Business Monitor (MSIG)

VAT taxpayer registries

  • List of VAT Taxpayers (VAT White List)
  • VAT Information Exchange System (VIES)

Data sources for AML/KYC/Compliance

  • Central Register of Beneficial Owners (CRBR)
  • List of Public Warnings Issued by the Polish Financial Supervision Authority
  • Decisions of the President of the Office of Competition and Consumer Protection
  • Consumer warnings from the Office of Competition and Consumer Protection (UOKiK)
  • Sanctions lists
  • PEP lists

Sources of data on tenders and grants

  • Public Procurement Bulletin (BZP)
  • Public Assistance Data Sharing System (SUDOP)
  • List of projects funded by European Funds in Poland

Property records

  • Electronic Land Registers (EKW)
  • Real Estate Price Registry (RCN)
  • Probate Registry

Industry registries and records

  • Waste Database (BDO)
  • Central Register of Hotel Establishments (CWOH)
  • National Electronic Register of Road Transport Operators (KREPTD)
  • Pharmacy Registry
  • Register of Entities Engaged in Medical Practice (RPWDL)
  • Register of Applications, Decisions, and Notifications (RWDZ)
  • Register of Insurance Intermediaries (RPU)
  • List of Beneficiaries of the Common Agricultural Policy (CAP List)

Other sources

  • Company websites
  • Search results from popular search engines
  • Map services
  • Social media platforms
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Retrieve data conveniently

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Access via API

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Database replicas

Frequently Asked Questions

Which registries are public?

Poland has a number of public registries maintained by government agencies that are accessible to anyone without the need to justify their inquiry.

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The most important ones from the perspective of business activity include: the National Court Register (KRS) with the Financial Documents Repository, the Central Register and Information on Economic Activity (CEIDG), the Register of National Economy Entities (REGON), the Central Register of Beneficial Owners (CRBR), the National Debt Register (KRZ), the VAT Payers List, and the Court and Business Monitor (MSiG).

Each of them contains different types of information—ranging from companies’ registration and financial data, through ownership structures, to information on debt and bankruptcy proceedings. Our API provides access to all these sources through a single integration.

How can I quickly access public records?

Access to individual public registries is generally immediate—their websites are available online and do not require registration. The problem arises when larger volumes of data need to be processed: the official APIs of public registries have query limits, can be technically unstable, and do not always return data in a format ready for direct integration with corporate systems.

MGBI’s Public Registers API solves this problem—we maintain our own copies of the registers, updated daily, and make them available via a stable API with no query limits, full integration support, and a guarantee of data quality.

What are the different types of public registries?

Public registries can be categorized by their functions. Business registries—such as the National Court Register (KRS) and the Central Registration and Information on Business (CEIDG)—collect basic information about companies: legal form, management details, addresses, and PKD codes.

Financial registries, including the KRS Financial Documents Repository, contain financial statements, balance sheets, and auditors’ opinions. Ownership registries, such as the CRBR, disclose the beneficial owners of entities. Debtor and proceeding registries, namely the KRZ and MSiG, provide information on bankruptcies, restructurings, and court announcements.

Tax registries constitute a separate category—the VAT Taxpayer Registry confirms the tax status of business partners. Through the Public Registries API from MGBI, all these categories are accessible via a single API from a single provider.

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Public Registers API

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©2026 MGBI
All rights
reserved
MGBI sp. z o.o.
ul. Marszałkowska 58/15
00-545 Warsaw
NIP 7010446505
REGON 360001489
KRS 0000533676
District Court for the Capital City of Warsaw
in Warsaw, 12th Commercial Division
of the National Court Register

In our collections, we process personal data relating to the business and professional activities of natural persons, as well as court proceedings conducted against them (e.g., bankruptcy, restructuring). Detailed information on this subject is available on the Personal Data Protection page.