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How to connect OpenRegister to Claude Cowork

Connect Claude Cowork to OpenRegister MCP. Find ownership details for siemens ag, check insolvency records for wirecard ag, and more using natural language, with authentication handled for you.

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OpenRegister provides structured German register data for companies, people, ownership, finances, insolvency, documents, monitoring, and usage. Use it to access reliable business intelligence from German public-register sources in one place.

10 Tools

Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your OpenRegister account to Cowork via Composio Connect, enabling it to find ownership details for Siemens AG, check insolvency records for Wirecard AG, monitor new filings for Volkswagen AG, and more such actions on your behalf without compromising your account security.

Also integrate OpenRegister with

ChatGPT Work

Connecting OpenRegister to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your OpenRegister account

Back in Cowork, ask the agent to connect to OpenRegister or give it any OpenRegister-related task.

For example, ask Cowork to:

  • "Find ownership details for Siemens AG"
  • "Check insolvency records for Wirecard AG"
  • "Monitor new filings for Volkswagen AG"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your OpenRegister account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like OpenRegister through MCP without you sharing account credentials directly with the agent.

What is the OpenRegister MCP server, and what's possible with it?

The OpenRegister MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your OpenRegister account. It provides structured and secure access so your agent can perform OpenRegister operations on your behalf.

TOOLS

Supported Tools

Every OpenRegister action and event your agent gets out of the box.

Get Company Data

Read one company profile, financials, historical ownership, holdings, current owners, or UBOs.

Get Credit Usage

Check the connected OpenRegister account's plan, included and used credits, remaining balance, overage, and reset time.

Get Document

Fetch an official Handelsregister document in real time for a company or retrieve a stored document by ID.

Get Insolvency

Get one insolvency proceeding and its complete published event history, including linked entities, status, court, case dates, administration, distributions, and event-specific details.

Get Person Data

Read a person's profile and management positions or the companies in which they hold ownership stakes.

List Monitors

List every company and person monitor for the connected OpenRegister account, including disabled monitors.

Look Up Company by URL

Resolve a fully qualified company website URL to its OpenRegister company ID and available contact details.

Search Companies

Find companies by name or structured criteria.

Search Insolvencies

Search German insolvency proceedings by free text or structured debtor, proceeding, status, date, company, or person criteria.

Search People

Search natural persons by name, birth date, city, or active status.

FRAMEWORKS

How to build OpenRegister MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use OpenRegister MCP with ChatGPT Work

FAQ

Frequently asked questions

With a standalone OpenRegister MCP server, the agents and LLMs can only access a fixed set of OpenRegister tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from OpenRegister and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right OpenRegister tools.

Yes, absolutely. You can configure which OpenRegister scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your OpenRegister data and credentials are handled as safely as possible.

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