# OpenRegister

```json
{
  "name": "OpenRegister",
  "slug": "open_register",
  "url": "https://composio.dev/toolkits/open_register",
  "markdown_url": "https://composio.dev/toolkits/open_register.md",
  "logo_url": "https://logos.composio.dev/api/openregister",
  "categories": [
    "data & analytics"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-10T12:34:39.861Z"
}
```

![OpenRegister logo](https://logos.composio.dev/api/openregister)

## Description

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.

## Summary

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.

## Categories

- data & analytics

## Toolkit Details

- Tools: 10

## Images

- Logo: https://logos.composio.dev/api/openregister

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for OpenRegister.
  - Setup:
    - Configure Api Key credentials for OpenRegister.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

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

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `OPEN_REGISTER_GET_COMPANY_DATA` | Get Company Data | Read one company profile, financials, historical ownership, holdings, current owners, or UBOs. Operations cost 10-25 credits; realtime profile/owners cost 20 credits. Historical ownership polls only after unbilled HTTP 202 responses and stops at the first billable HTTP 200. Financial source URLs expire after about 30 minutes and should be used immediately. |
| `OPEN_REGISTER_GET_CREDIT_USAGE` | Get Credit Usage | Check the connected OpenRegister account's plan, included and used credits, remaining balance, overage, and reset time. This request costs 0 credits. |
| `OPEN_REGISTER_GET_DOCUMENT` | Get Document | Fetch an official Handelsregister document in real time for a company or retrieve a stored document by ID. Each request costs 10 credits. The tool returns document metadata and an ephemeral URL without downloading the file; use the URL immediately. Stored URLs are valid for 15 minutes, while the realtime URL expiry is not documented. |
| `OPEN_REGISTER_GET_INSOLVENCY` | 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. Costs 10 OpenRegister credits. |
| `OPEN_REGISTER_GET_PERSON_DATA` | Get Person Data | Read a person's profile and management positions or the companies in which they hold ownership stakes. Each request costs 10 credits. |
| `OPEN_REGISTER_LIST_MONITORS` | List Monitors | List every company and person monitor for the connected OpenRegister account, including disabled monitors. This unpaginated read costs zero credits and was verified as available on a free account. It does not create, re-enable, or delete monitors. |
| `OPEN_REGISTER_LOOKUP_COMPANY_BY_URL` | Look Up Company by URL | Resolve a fully qualified company website URL to its OpenRegister company ID and available contact details. Each lookup costs 10 credits. |
| `OPEN_REGISTER_SEARCH_COMPANIES` | Search Companies | Find companies by name or structured criteria. Use autocomplete for a fast 1-credit lookup, or advanced search for filters, location, and paginated results at 10 credits per page. |
| `OPEN_REGISTER_SEARCH_INSOLVENCIES` | Search Insolvencies | Search German insolvency proceedings by free text or structured debtor, proceeding, status, date, company, or person criteria. Returns one page at a time; each page costs 10 OpenRegister credits. |
| `OPEN_REGISTER_SEARCH_PEOPLE` | Search People | Search natural persons by name, birth date, city, or active status. Each returned page costs 10 credits. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

```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');
```

#### Path 1, Step 3: Execute OpenRegister Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute OpenRegister actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Find company details and ownership information for Siemens AG in OpenRegister'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```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);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK for Python or TypeScript
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
```

#### Path 2, Step 2: Initialize Client and Create Tool Router Session

Import and initialize the Composio client, then create a Tool Router session for OpenRegister
```python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
```

```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}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent (Anthropic Claude or Mastra)
```python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to OpenRegister tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Check insolvency records for Wirecard AG in OpenRegister')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
```

```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}`);
```

## Why Use Composio?

### 1. 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

### 2. 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

### 3. 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

### 4. 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

## Use OpenRegister with any AI Agent Framework

Choose a framework you want to connect OpenRegister with:

- [ChatGPT Work](https://composio.dev/toolkits/open_register/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/open_register/framework/claude-cowork)

## Related Toolkits

- [Excel](https://composio.dev/toolkits/excel) - Microsoft Excel is a robust spreadsheet application for organizing, analyzing, and visualizing data. It's the go-to tool for calculations, reporting, and flexible data management.
- [21risk](https://composio.dev/toolkits/_21risk) - 21RISK is a web app built for easy checklist, audit, and compliance management. It streamlines risk processes so teams can focus on what matters.
- [Abstract](https://composio.dev/toolkits/abstract) - Abstract provides a suite of APIs for automating data validation and enrichment tasks. It helps developers streamline workflows and ensure data quality with minimal effort.
- [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time.
- [Agentql](https://composio.dev/toolkits/agentql) - Agentql is a toolkit that connects AI agents to the web using a specialized query language. It enables structured web interaction and data extraction for smarter automations.
- [Agenty](https://composio.dev/toolkits/agenty) - Agenty is a web scraping and automation platform for extracting data and automating browser tasks—no coding needed. It streamlines data collection, monitoring, and repetitive online actions.
- [Ambee](https://composio.dev/toolkits/ambee) - Ambee is an environmental data platform providing real-time, hyperlocal APIs for air quality, weather, and pollen. Get precise environmental insights to power smarter decisions in your apps and workflows.
- [Ambient weather](https://composio.dev/toolkits/ambient_weather) - Ambient Weather is a platform for personal weather stations with a robust API for accessing local, real-time, and historical weather data. Get detailed environmental insights directly from your own sensors for smarter apps and automations.
- [Anonyflow](https://composio.dev/toolkits/anonyflow) - Anonyflow is a service for encryption-based data anonymization and secure data sharing. It helps organizations meet GDPR, CCPA, and HIPAA data privacy compliance requirements.
- [Api ninjas](https://composio.dev/toolkits/api_ninjas) - Api ninjas offers 120+ public APIs spanning categories like weather, finance, sports, and more. Developers use it to supercharge apps with real-time data and actionable endpoints.
- [Api sports](https://composio.dev/toolkits/api_sports) - Api sports is a comprehensive sports data platform covering 2,000+ competitions with live scores and 15+ years of stats. Instantly access up-to-date sports information for analysis, apps, or chatbots.
- [Apify](https://composio.dev/toolkits/apify) - Apify is a cloud platform for building, deploying, and managing web scraping and automation tools called Actors. It lets you automate data extraction and workflow tasks at scale—no infrastructure headaches.
- [Autom](https://composio.dev/toolkits/autom) - Autom is a lightning-fast search engine results data platform for Google, Bing, and Brave. Developers use it to access fresh, low-latency SERP data on demand.
- [Beaconchain](https://composio.dev/toolkits/beaconchain) - Beaconchain is a real-time analytics platform for Ethereum 2.0's Beacon Chain. It provides detailed insights into validators, blocks, and overall network performance.
- [Big data cloud](https://composio.dev/toolkits/big_data_cloud) - BigDataCloud provides APIs for geolocation, reverse geocoding, and address validation. Instantly access reliable location intelligence to enhance your applications and workflows.
- [Bigpicture io](https://composio.dev/toolkits/bigpicture_io) - BigPicture.io offers APIs for accessing detailed company and profile data. Instantly enrich your applications with up-to-date insights on 20M+ businesses.
- [Bitquery](https://composio.dev/toolkits/bitquery) - Bitquery is a blockchain data platform offering indexed, real-time, and historical data from 40+ blockchains via GraphQL APIs. Get unified, reliable access to complex on-chain data for analytics, trading, and research.
- [Brightdata](https://composio.dev/toolkits/brightdata) - Brightdata is a leading web data platform offering advanced scraping, SERP APIs, and anti-bot tools. It lets you collect public web data at scale, bypassing blocks and friction.
- [Builtwith](https://composio.dev/toolkits/builtwith) - BuiltWith is a web technology profiler that uncovers the technologies powering any website. Gain actionable insights into analytics, hosting, and content management stacks for smarter research and lead generation.
- [Byteforms](https://composio.dev/toolkits/byteforms) - Byteforms is an all-in-one platform for creating forms, managing submissions, and integrating data. It streamlines workflows by centralizing form data collection and automation.

## Frequently Asked Questions

### Do I need my own developer credentials to use OpenRegister with Composio?

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

### Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. [Learn more](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

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

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)