active Legal form GmbH

51nodes GmbH

Stuttgart ·HRB 762846 Stuttgart ·51nodes.io

Handelsregister API View JSON Collapse

{
    "name": "51nodes GmbH",
    "status": "ACTIVE"
}

Live API

GEThandelsregister.ai/api/v1/fetch-organization

?q=17e4fc6fbfa5695b7cf1e090415708cd

&features=financial_kpi

&features=balance_sheet_accounts

&features=related_persons

&features=shareholders

&features=ubos

&features=shareholdings

&features=history

&features=annual_financial_statements__html

curl -H 'X-API-KEY: YOUR_API_KEY' \
  "https://handelsregister.ai/api/v1/fetch-organization?q=17e4fc6fbfa5695b7cf1e090415708cd&features=financial_kpi&features=balance_sheet_accounts&features=related_persons&features=shareholders&features=ubos&features=shareholdings&features=history&features=annual_financial_statements__html"

# pip install handelsregister
from handelsregister import Handelsregister

client = Handelsregister(api_key="YOUR_API_KEY")  # or set HANDELSREGISTER_API_KEY
organization = client.fetch_organization(
    q="17e4fc6fbfa5695b7cf1e090415708cd",
    features=[
        "financial_kpi",
        "balance_sheet_accounts",
        "related_persons",
        "shareholders",
        "ubos",
        "shareholdings",
        "history",
        "annual_financial_statements__html",
    ],
)
print(organization["name"])

// npm install handelsregister
import { Handelsregister } from 'handelsregister';

const client = new Handelsregister('YOUR_API_KEY'); // or set HANDELSREGISTER_API_KEY
const organization = await client.fetchOrganization({
  q: '17e4fc6fbfa5695b7cf1e090415708cd',
  features: [
    'financial_kpi',
    'balance_sheet_accounts',
    'related_persons',
    'shareholders',
    'ubos',
    'shareholdings',
    'history',
    'annual_financial_statements__html',
  ],
});
console.log(organization.name);

// npm install handelsregister
const { Handelsregister } = require('handelsregister');

const client = new Handelsregister(process.env.HANDELSREGISTER_API_KEY);
(async () => {
  const organization = await client.fetchOrganization({
    q: '17e4fc6fbfa5695b7cf1e090415708cd',
    features: [
      'financial_kpi',
      'balance_sheet_accounts',
      'related_persons',
      'shareholders',
      'ubos',
      'shareholdings',
      'history',
      'annual_financial_statements__html',
    ],
  });
  console.log(organization.name);
})();

JSON preview

{
    "entity_id": "17e4fc6fbfa5695b7cf1e090415708cd",
    "name": "51nodes GmbH",
    "status": "ACTIVE",
    "legal_form": "GmbH",
    "registration_date": "2017-10-19T00:00:00+00:00",
    "address": {
        "street": "Industriestraße",
        "house_number": "4",
        "postal_code": "70565",
        "city": "Stuttgart",
        "country": "DEU"
    },
    "registration": {
        "register_type": "HRB",
        "register_number": "762846",
        "court": "Stuttgart"
    }
}

"purpose": "…"

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"representation_scheme": { … }

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"capital": { … }

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"contact_data": { … }

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"industry_classification": { … }

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"keywords": [ … ]

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"products_and_services": [ … ]

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"history": [ … ]

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"financial_kpi": [ … ]

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"related_persons": { … }

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"shareholders": { … }

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"ubos": { … }

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"shareholdings": { … }

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"balance_sheet_accounts": [ … ]

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"annual_financial_statements__html": [ … ]

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Base fields

entity_id string

Stable handelsregister.ai identifier (32-char hex string).

name string

Registered legal name of the entity.

status enum

ACTIVE, TERMINATED, DISSOLVED or INSOLVENT.

legal_form string

Legal form (GmbH, AG, KG, …) when available.

address object

Postal address with street, house_number, postal_code, city, county, state, country and coordinates.

registration object

Register record with court, register_type and register_number.

registration_date date

Initial entry into the commercial register (ISO date).

purpose string

Stated business purpose (Unternehmensgegenstand).

representation_scheme object

General representation scheme: { current: [...], history: [...] } with effective_from/effective_to per version.

capital object

Registered capital: { current, history }. current carries amount, currency and kind (STAMMKAPITAL, GRUNDKAPITAL, HAFTSUMME, GENEHMIGTES_KAPITAL, BEDINGTES_KAPITAL, VARIABLES_KAPITAL — open enum); each history entry has value, effective_from and effective_to (null = still in force). change_amount on a history entry is unsigned and does not always equal the difference between two consecutive amounts, so derive increases and decreases from the amounts. Partnerships and other entities without registered capital return current: null and an empty history.

contact_data object

website, phone_number and email when available.

industry_classification object

Industry codes per WZ2008 and WZ2025 with labels.

keywords array<string>

Keywords derived from the business purpose.

products_and_services array<string>

Product and service descriptions when available.

history array<object>

Chronological log of all register changes (name, seat, capital, representation, …).

features=financial_kpi

financial_kpi array<object>

Per fiscal year: revenue, employees, active_total (balance-sheet total), net_income, material_expenses, personnel_expenses. Every year names the source of its figures in _provenance: statement_type (Jahresabschluss = annual accounts, Bilanz = balance sheet only, Konzernabschluss = consolidated accounts; null for market data), period_start and period_end of the fiscal year, plus exempt_subsidiary and parent_organization ({ entity_id, name }). With exempt_subsidiary: true the company published the consolidated accounts of parent_organization instead of accounts of its own, so that year's figures cover the whole group.

features=balance_sheet_accounts

balance_sheet_accounts array<object>

Per fiscal year: hierarchical balance-sheet line items from the published statement, with _provenance naming the source of the figures (fields as in financial_kpi). For energy utilities, Max accounts also receive activity_statements through the API: the balance sheets of the activity statements (section 6b EnWG), one per regulated activity such as electricity or gas distribution; together they do not add up to the company's balance sheet.

features=profit_and_loss_account

profit_and_loss_account array<object>

Per fiscal year: hierarchical profit-and-loss line items, with _provenance naming the source of the figures (fields as in financial_kpi). For energy utilities, Max accounts also receive activity_statements through the API: the profit and loss accounts of the activity statements (section 6b EnWG), one per regulated activity.

features=related_persons

related_persons object

Authorized representatives: { current: [...], past: [...] } — managing directors, board members, signatories. Each person carries organization_representation_scheme and role_representation_scheme (current scheme + history).

features=shareholders

shareholders object

Shareholders: { total_capital, entries: [...], history: { current_as_of, past: [...] } }. Each entry carries shareholder, contribution, contribution_ratio and role; history.past delivers previous shareholder lists with an as_of date. total_capital, contribution and contribution_ratio may be null (e.g. for partnerships).

features=ubos

ubos object

Ultimate beneficial owners: { beneficial_owners, unresolved_beneficial_owners, coverage } as recorded in the transparency register.

features=shareholdings

shareholdings object

Stakes this entity holds in others: { holdings: { current: [...] }, summary }. Each holding links another organization by entity_id.

features=publications

publications array<object>

Official commercial-register publications (date, title, full text).

features=annual_financial_statements__html

annual_financial_statements__html array<object>

Published annual statements with document_html (rendered HTML), document_type, document_title, document_date, language and year.

Overview

Legal form: GmbH
Address: Industriestraße 4
70565 Stuttgart
Commercial register: HRB 762846, Stuttgart
Registration date: October 19, 2017
Industry: Erbringung von Beratungsleistungen auf dem Gebiet der Informationstechnologie
Erbringung von sonstigen Dienstleistungen der Informationstechnologie
Erbringung von sonstigen Informationsdienstleistungen
Registered capital: 27,646.00 EUR
Representation rules: Ist nur ein Geschäftsführer bestellt, vertritt er allein. Sind mehrere Geschäftsführer bestellt, vertreten zwei gemeinsam oder ein Geschäftsführer mit einem Prokuristen.
Purpose: Die Erbringung von Dienst- sowie Beratungsleistungen sowie die Beteiligung an Unternehmen, insbesondere die Erbringung von Beratungs- sowie Schulungsleistungen mit IT- und/oder Blockchain Technologiebezug, die Konzeption von IT-Architektur, das Erbringen von Programmierleistungen sowie die Softwareentwicklung, der Betrieb von Programmen und Softwarekomponenten auf eigene Rechnung und für Dritte, die personelle Unterstützung von Beratungs-, Konzeptions-, Entwicklungs- und Betriebsprojekten mit IT- und/oder Blockchain-Technologiebezug, die Beratung von Unternehmensgründungen sowie die Beteiligung an Unternehmen mit IT- und/oder Blockchain-Technologiebezug.

Financials

Employees 2023

6

Total assets 2023

443.532 €

Net income 2023

42.922 €

Annual accounts · 01.01.2023 – 31.12.2023

Balance sheet

Annual accounts · 01.01.2023 – 31.12.2023

2023

Assets 443,5 k

Current Assets 98,8 % 438,2 k
Fixed Assets 0,9 % 4,0 k
Prepaid Expenses 0,3 % 1,3 k

Liabilities and Equity 443,5 k

Liabilities 81,5 % 361,5 k
Equity 17,3 % 76,8 k
Provisions 1,2 % 5,3 k
Accrued Expenses 0,0 % 0

Full balance sheet line items with an API key Get API key →

Authorized representatives

Jochen Kaßberger since 2018 Managing Director

1 former representatives · viewable with an API key Get API key →

Ownership & holdings

Shareholders

Top 3 hold 94.2 %

Jochen Kaßberger 54.3 % 15k €
YOPITER GmbH DEU Amtsgericht Stuttgart unter HR B 757724 36.2 % 10k €
U***** B****** 3.7 % 1k €

5 more shareholders · viewable with an API key Get API key →

Ultimate beneficial owners (UBOs)

2 hold ≥ 25%

J***** K****** ≥25% 54.3 %
J** B****** ≥25% 36.2 %

6 more beneficial owners · viewable with an API key Get API key →

Holds shares in

Tokenfabrik UG (haftungsbeschränkt) Stuttgart, DEU 24.5 %

History

2025
12.03.

Change of bylaws

51nodes GmbH
2024
06.03.

Exit of position

J** B****** · Managing Director
2018
04.09.

Change of share capital

51nodes GmbH
04.09.

Member entry

Jochen Kaßberger · Managing Director
04.09.

Change of bylaws

51nodes GmbH
04.09.

Change of address

51nodes GmbH
07.02.

Change of bylaws

51nodes GmbH
07.02.

Change of share capital

51nodes GmbH

13 more events including all details Get API key →

Annual statements

Original published statements, ordered by fiscal year.

1 document

Fiscal year	Document	Published	Access
2023	Jahresabschluss	Published August 6, 2024	Via the API

All financial statements via the API

Register documents

Bring original register extracts and company documents into your application as PDF or XML.

GET/v1/fetch-document

View the document API

Website 51nodes.io

Current extract (AD) PDF
Chronological extract (CD) PDF
Structured content (SI, XML) XML
Shareholders list PDF
Articles of association PDF

Explore more companies

Handelsregister API · MCP

Company data in your AI chat

Ask about directors, ownership and financial figures. Our MCP server connects your assistant to the Handelsregister API.

MCP documentation

Connect your assistant

Open Connectors in Claude and add a custom connector.
Enter this server URL and add the connector:
https://mcp.handelsregister.ai/mcp
Connect with your handelsregister.ai account, then enable the connector in your chat via “+” → “Connectors”.

In ChatGPT on the web, open Settings → Apps and create a custom app. Developer mode must be enabled for your account.
Use “handelsregister” as the name, OAuth for authentication and this server URL:
https://mcp.handelsregister.ai/mcp
Sign in with your handelsregister.ai account, create the app and select it from the tools menu in your chat.

Run once in your terminal:

Terminal

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

Replace YOUR_API_KEY with your handelsregister.ai API key.

Add this MCP server as a tool in your application:

Python

from openai import OpenAI

client = OpenAI()
response = client.responses.create(
    model="gpt-6-astra",
    input="Show me the directors, shareholders and latest available financial figures for 51nodes GmbH. Include fiscal years and sources.\n\nentity_id: 17e4fc6fbfa5695b7cf1e090415708cd",
    tools=[{
        "type": "mcp",
        "server_label": "handelsregister",
        "server_url": "https://mcp.handelsregister.ai/mcp",
        "headers": {"X-API-Key": "YOUR_API_KEY"},
        "require_approval": "never",
    }],
)
print(response.output_text)

Replace YOUR_API_KEY with your handelsregister.ai API key.

Add this configuration to your MCP client:

JSON

{
  "mcpServers": {
    "handelsregister": {
      "url": "https://mcp.handelsregister.ai/mcp",
      "headers": { "X-API-Key": "YOUR_API_KEY" }
    }
  }
}

Replace YOUR_API_KEY with your handelsregister.ai API key.

Ask about this company

Once connected, ask your assistant this question:

Show me the directors, shareholders and latest available financial figures for 51nodes GmbH. Include fiscal years and sources.

entity_id17e4fc6fbfa5695b7cf1e090415708cd

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