OpenRegister MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with OpenRegister MCP or direct API to look up German companies, inspect ownership structures, review financial records, and monitor insolvency updates through natural language.

OpenRegister logoOpenRegister
Api Key

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

Try OpenRegister now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
OpenRegister
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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.

SETUP GUIDE

Connect OpenRegister MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK for Python or TypeScript
2

Initialize Client and Create Tool Router Session

typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
Import and initialize the Composio client, then create a Tool Router session for OpenRegister
3

Connect to AI Agent

typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'Check insolvency records for Wirecard AG in OpenRegister'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE

Connect OpenRegister API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute OpenRegister Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Find company details and ownership information for Siemens AG in OpenRegister'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute OpenRegister actions with your Agent

Why Use Composio?

AI Native OpenRegister Integration

  • Supports both OpenRegister MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable company, person, ownership, and document lookups
  • Rich coverage for querying German register, financial, insolvency, monitoring, and usage data

Managed Auth

  • Secure API key handling so your agents don't need hard-coded OpenRegister credentials
  • Central place to manage, scope, and revoke OpenRegister access
  • Per user and per environment credentials for cleaner development and production setups

Agent Optimized Design

  • OpenRegister tools are shaped so language models can understand what data to fetch and when
  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you can see each company lookup, document request, and monitoring action

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access OpenRegister
  • Scoped, least privilege access to sensitive company, person, ownership, and financial data
  • Full audit trail of agent actions to support review, compliance, and due diligence workflows
FRAMEWORKS

Use OpenRegister with any AI Agent Framework

Choose a Framework you want to connect OpenRegister with

FAQ

Frequently asked questions

Yes, OpenRegister requires you to configure your own API key. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

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Managed auth, hosted MCP servers, and every OpenRegister tool your agent needs.Free to start.

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