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MCP server

The German commercial register in ChatGPT and Claude

Connect your AI assistant to handelsregister.ai. It finds companies, reads register data and fetches official documents on its own – you just ask.

Open in ChatGPT Connect Claude

Also for n8n, Claude Code, Cursor and other MCP clients

Free account with 150 credits to start

Ask your assistant

  • Onboarding & KYC/KYB

    “Who may sign for Hetzner Online GmbH? Also fetch the current register extract.”

  • Financials

    “Who are the shareholders of Hetzner Online GmbH, and how have total assets and equity developed?”

  • Lead generation

    “Find mechanical engineering GmbHs in Baden-Württemberg with more than 50 employees and make a table.”

  • Documents

    “Fetch the current shareholder list of Hetzner Online GmbH as a PDF.”

Your assistant picks the right calls on its own.

How it works

What is MCP?

MCP stands for Model Context Protocol. Through this open standard, AI assistants use tools and data sources. With handelsregister.ai connected, your assistant fetches the data from the commercial register itself instead of guessing or quoting old web pages.

  1. 1 You ask your question, just as you normally would in the chat.
  2. 2 Your assistant picks the right handelsregister.ai tools and calls them.
  3. 3 It answers with the data from the commercial register. Documents come as PDF.

Connect

Connected in two minutes

ChatGPT and Claude are the fastest: add it, sign in with your handelsregister.ai account, ask. You don't need an API key for that.

ChatGPT

Official plugin
  1. 1.Open the handelsregister.ai plugin in ChatGPT and add it.
  2. 2.Sign in with your handelsregister.ai account when ChatGPT asks.
  3. 3.Ask your question in the chat.
Open in ChatGPT

Claude

Plugin coming soon
  1. 1. In Claude, open the settings under “Connectors” and add a custom connector.
  2. 2. Enter this server URL: https://mcp.handelsregister.ai/mcp
  3. 3. Connect your handelsregister.ai account and enable the connector in the chat via “+” → “Connectors”.
Open connectors in Claude

n8n

Verified node

For workflows without a chat: enrich companies in your CRM, start KYC checks and fetch documents for the file.

  1. 1.In n8n, open the nodes panel with “+” and search for “handelsregister.ai”.
  2. 2.Install the node with the verified badge and add your API key.
  3. 3.Drag it into your workflow and connect it like any other node.
Go to the n8n integration →

Claude Code, Cursor and others

Add the server URL to your MCP client. Sign in with OAuth or send your API key in the X-API-Key header.

https://mcp.handelsregister.ai/mcp 
claude mcp add --transport http \
  handelsregister \
  https://mcp.handelsregister.ai/mcp \
  --header "X-API-Key: YOUR_API_KEY"

Replace YOUR_API_KEY with your API key.

Read the MCP documentation →

Tools

What your assistant can fetch

Tools for every data product, from search to Signals. Each call costs as many credits as the same call through the REST API. There is no separate fee for MCP.

Company profile

from 5 credits

Master data, management and representation, financial KPIs, balance sheet and P&L, shareholders, ultimate beneficial owners (UBO), holdings, mergers & acquisitions (M&A), history, insolvency notices and news. One at a time, as an overview or several in one call.

get_company_overview get_company_snapshot get_company_features get_related_persons get_shareholders get_ubos get_shareholdings get_financials get_balance_sheet get_profit_and_loss get_annual_financial_statements get_annual_financial_statements_html get_mergers_and_acquisitions get_publications get_insolvency_publications get_news get_website_content

Search & finders

1 credit per page

Search companies by name, location, legal form, industry and key figures. Ready-made finders search by industry, key figures, radius, new registrations, changes, people, owners, management, insolvency and related companies. Some finders come with Pro and Max. Your assistant looks up WZ codes and filter values for free.

search_organizations search_organizations_advanced find_companies_by_industry find_companies_by_financials find_companies_near find_newly_registered_companies find_recently_changed_companies find_related_companies find_companies_by_person find_companies_by_ownership find_companies_by_management find_companies_in_insolvency get_search_filter_reference find_industry_codes

Signals

20 credits per page

New changes in the register across all companies: new registrations, management changes, capital, master data, closures, insolvencies and transformations. Or every change for specific companies. Insolvencies come with Pro and Max, transformations with Max.

get_recent_new_registrations get_recent_management_changes get_recent_capital_changes get_recent_master_data_changes get_recent_company_closures get_recent_insolvency_events get_recent_mergers_and_transformations get_recent_company_changes get_signal_details

Person profile

15 credits · from Plus

A person's roles and holdings in companies.

fetch_person

Documents

15 credits

Register extracts, shareholder lists and other official documents as PDF.

fetch_document

Account

free

Plan, balance and the data your plan unlocks.

get_account_status

All tools in the documentation →

Access

You stay in control

Your assistant only uses what you allow, and you can end its access at any time.

  • You sign in with your handelsregister.ai account. ChatGPT and Claude get an access token, never your password.
  • Your assistant only reads: the tools fetch data and change nothing in your account.
  • Each call costs the same credits as through the API. You see your balance in your account.
  • Disconnect at any time in ChatGPT or Claude, or delete your API key.
  • Our servers are in Germany and the EU.

FAQ

Questions about MCP

What is an MCP server?

MCP stands for Model Context Protocol, an open standard through which AI assistants use tools and data sources. The handelsregister.ai MCP server gives your assistant tools for company search with ready-made finders, the company profile with financials and shareholders, Signals on changes in the register, the person profile and official documents.

Which AI assistants can I connect?

ChatGPT through our official plugin and Claude as a custom connector; a plugin for Claude is coming soon. There are also Claude Code, Cursor and other clients that add an MCP server by URL. For workflows without a chat, there is our verified node for n8n.

Do I need a handelsregister.ai account?

Yes. The account is free and starts with 150 credits. In ChatGPT and Claude you sign in with it when you connect; in other clients you use your API key.

What does using it through MCP cost?

The same as through the API: each call costs the credits of the same REST call, a company profile for example from 5 credits. There is no separate fee for MCP. Person profiles are available from the Plus plan.

Can my assistant change anything?

No. All tools only read: they fetch data and change nothing in your account.

Where does the data come from?

The data comes from official registers and public sources, mainly:

  • Handelsregister (German Commercial Register): Register data such as legal form, registered office and management, plus announcements, shareholder lists and documents
  • Unternehmensregister & Bundesanzeiger: Published annual financial statements with balance sheet and P&L
  • Insolvency courts: Insolvency announcements
  • Press & web: News, company websites and other publicly accessible web pages

Start with 150 free credits

Create an account, connect ChatGPT or Claude and ask your first question.

Create a free account

For developers: MCP documentation · REST API · llms.txt