firmenliste

Search and price B2B company address data for Germany, Austria and Switzerland (~12.5M records across 6,400+ industry lists).

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

  • Laender Auflisten: Listet alle Laender mit B2B-Firmenadressen von firmenliste.net: DACH (de/at/ch) mit online kaufbaren Listen inkl. Anzahl, weitere ~40 Laender auf Anfrage. Inklusive Datenstand.
  • Branchen Suchen: Findet Adresslisten zu einem Suchbegriff (z. B. 'Golf', 'Spedition'). Liefert pro Treffer idListe, Datensatzanzahl, Feld-Verfuegbarkeit (E-Mail/Telefon/Website/Ansprechpartner) und Ne
  • Liste Details: Detailansicht einer Adressliste: alle Feld-Zaehler, Bundesland-Verteilung, enthaltene Felder und saemtliche Paketpreise (Komplett, Nur-E-Mail, je Bundesland). Nettopreise zzgl. dt. MwSt

What data it sees

Do you need an account

No: the server works without sign-in

Search and price B2B company address data for Germany, Austria and Switzerland (~12.5M records across 6,400+ industry lists). Tools let agents find matching lists by keyword, check record counts and field coverage (email, phone, website, contact person), view all package prices including per-state options, and create 48h price-stable quotes with an order link. Read-only, no API key required — purchases are always completed by a human. Operated by Adresskontor GmbH (firmenliste.net), 20+ years in the B2B address business.

How to connect

How to connect firmenliste to Claude

The server address to paste into Claude settings:

https://firmenliste--support-04og.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect firmenliste to ChatGPT

The server address to paste into ChatGPT settings:

https://firmenliste--support-04og.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect firmenliste to Cursor

The server address to paste into Cursor settings:

https://firmenliste--support-04og.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

laender_auflistenListet alle Laender mit B2B-Firmenadressen von firmenliste.net: DACH (de/at/ch) mit online kaufbaren Listen inkl. Anzahl, weitere ~40 Laender auf Anfrage. Inklusive Datenstand.
branchen_suchenFindet Adresslisten zu einem Suchbegriff (z. B. 'Golf', 'Spedition'). Liefert pro Treffer idListe, Datensatzanzahl, Feld-Verfuegbarkeit (E-Mail/Telefon/Website/Ansprechpartner) und Nettopreis. Immer der erste Schritt vor Details oder Angebot.
liste_detailsDetailansicht einer Adressliste: alle Feld-Zaehler, Bundesland-Verteilung, enthaltene Felder und saemtliche Paketpreise (Komplett, Nur-E-Mail, je Bundesland). Nettopreise zzgl. dt. MwSt.
angebot_erstellenErzeugt ein 48h gueltiges, preisstabiles Angebot (quote_id) und liefert eine bestell_url. WICHTIG: Nur nach ausdruecklicher Bestaetigung des Nutzers aufrufen. Der Kauf selbst erfolgt durch den Menschen ueber die bestell_url. Varianten: umfang='nur_email' (nur E-Mail/Kategorie/Bundesland) oder bundesland='Bayern' (einzelnes Bundesland-Paket).
kaufbedingungenMaschinenlesbare Kauf- und Nutzungsbedingungen (B2B-only, MwSt, Widerruf, rechtliche Grenzen der Datennutzung nach UWG/DSGVO). Vor einer Kaufempfehlung abrufen und dem Nutzer korrekt wiedergeben.