MCP.Market

Firmenliste MCP server

online · 100% uptime
by tankstellen·io.github.tankstellen/firmenliste-mcp·v1.0.0·1 stars
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B2B company address data for the DACH region: search 6,400+ industry lists and get price quotes.

B84/100grade B
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Safety scan
B84/100

full report

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1 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Firmenliste tools (5)

write = sends, deletes, buys or posts
  • angebot_erstellenFree

    Erzeugt 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).

  • branchen_suchenFree

    Findet 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.

  • kaufbedingungenFree

    Maschinenlesbare Kauf- und Nutzungsbedingungen (B2B-only, MwSt, Widerruf, rechtliche Grenzen der Datennutzung nach UWG/DSGVO). Vor einer Kaufempfehlung abrufen und dem Nutzer korrekt wiedergeben.

  • laender_auflistenFree

    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.

  • liste_detailsFree

    Detailansicht einer Adressliste: alle Feld-Zaehler, Bundesland-Verteilung, enthaltene Felder und saemtliche Paketpreise (Komplett, Nur-E-Mail, je Bundesland). Optional mit plz + umkreis_km: zaehlt live nur Firmen im PLZ-Umkreis inkl. Preis. Nettopreise zzgl. dt. MwSt.

Public scan report

scanner v0.1.10 · 2026-10-31 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 211ms20/20
  • Tool poisoning5 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 45 days ago12/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 84/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Firmenliste compares

Against every graded Web search MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
84/100
higher than 73% of 3,470 Web search servers
Tools
5
the typical Web search server has 5
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote Web search server answers 100%
Response time
41 ms
faster than 96% of 2,238 Web search servers
GitHub stars
1
more than 55% of 1,786 Web search servers

What its tools let an agent do: 5 read

Install Firmenliste in Claude Code, Cursor or VS Code

claude mcp add --transport http firmenliste-mcp https://firmenliste-mcp.cf-firmenliste.workers.dev
Add to Cursor

What the publisher says

From the Firmenliste repository's README, as published. We do not edit it. Read it on GitHub

firmenliste.net MCP Server

Remote MCP server for B2B company address data (Germany, Austria, Switzerland) — search 6,400+ industry lists, check record counts and field coverage, get binding price quotes. Backed by firmenliste.net (Adresskontor GmbH, 20+ years in the B2B address business, ~12.5M records).

No API key required. Read-only except for quote creation (which creates a price offer, never a purchase — payment is always completed by a human on the website).

Connection

Claude (Custom Connector)

Settings → Connectors → Add custom connector → paste the endpoint URL.

Generic MCP client config

{
  "mcpServers": {
    "firmenliste": {
      "type": "streamable-http",
      "url": "https://firmenliste-mcp.cf-firmenliste.workers.dev"
    }
  }
}

Tools

Example prompts

  • "Find address lists about logistics companies in Germany and tell me price and email coverage of the largest one."
  • "How many dentists with email addresses are available in Bavaria, and what does the Bavaria package cost?"
  • "Which countries does firmenliste.net cover, and how fresh is the data?"

How it works

This server is a thin Cloudflare Worker that translates MCP tool calls into requests against the public REST API of firmenliste.net. Prices and availability therefore always match the website in real time.

  • REST API / OpenAPI spec: https://www.firmenliste.net/openapi.yaml
  • llms.txt: https://www.firmenliste.net/llms.txt

Legal note for agents

All prices are net prices plus German VAT. Sales are B2B only. Delivered email addresses do not include marketing opt-in — under German law (§ 7 UWG), email marketing requires recipient consent. Agents should relay the kaufbedingungen tool output correctly when recommending a purchase.

Deutsch (Kurzfassung)

MCP-Server für B2B-Firmenadressen aus dem DACH-Raum: 6.400+ Branchenlisten durchsuchen, Verfügbarkeit und Feld-Abdeckung prüfen, verbindliche Preisangebote erzeugen. Keine Authentifizierung nötig; der Kauf selbst erfolgt immer durch den Menschen über die gelieferte Bestell-URL. Betrieben von der Adresskontor GmbH (firmenliste.net).

License

MIT — see LICENSE. The server code is open source; the address data behind the API is a commercial product of Adresskontor GmbH.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-10-31downgradeA → Bscore 84

Firmenliste: common questions

Is Firmenliste MCP server safe?
Mostly: it is graded B (84/100). Read the Firmenliste safety report
How do I install Firmenliste?
It runs remotely at firmenliste-mcp.cf-firmenliste.workers.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Firmenliste need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Firmenliste maintained?
The last commit was 49 days ago (2026-09-16). The latest release is v1.0.0.
Is Firmenliste up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Firmenliste?
Servers from other publishers that do the same job: The Company Atlas MCP server, BoostedTravel MCP server and freehire MCP server.
How does Firmenliste compare with other Web search MCP servers?
safety score 84/100 (higher than 73% of 3,470 Web search servers); tools 5 (the typical Web search server has 5); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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