# io.github.tankstellen/firmenliste-mcp (remote · firmenliste-mcp.cf-firmenliste.workers.dev)

B2B company address data for the DACH region: search 6,400+ industry lists and get price quotes.

- Trust score: 77/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `firmenliste-mcp.cf-firmenliste.workers.dev`: 77/100 (this document), [markdown](https://verifymcp.io/servers/tankstellen-firmenliste-mcp/firmenliste-mcp.md), [page](https://verifymcp.io/servers/tankstellen-firmenliste-mcp/firmenliste-mcp)

## Channel facts

- Endpoint: `https://firmenliste-mcp.cf-firmenliste.workers.dev`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS check failed: the endpoint is reachable over plaintext HTTP.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 78/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 593 tokens (~118/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 80/100
  - Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 83/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 50% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.tankstellen/firmenliste-mcp server?

io.github.tankstellen/firmenliste-mcp is a hosted endpoint at https://firmenliste-mcp.cf-firmenliste.workers.dev/, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http tankstellen-firmenliste-mcp 'https://firmenliste-mcp.cf-firmenliste.workers.dev/'
```

### Cursor

```json
{
  "mcpServers": {
    "tankstellen-firmenliste-mcp": {
      "url": "https://firmenliste-mcp.cf-firmenliste.workers.dev/"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "tankstellen-firmenliste-mcp": {
      "type": "http",
      "url": "https://firmenliste-mcp.cf-firmenliste.workers.dev/"
    }
  }
}
```

### Codex

```toml
[mcp_servers.tankstellen-firmenliste-mcp]
url = "https://firmenliste-mcp.cf-firmenliste.workers.dev/"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tankstellen-firmenliste-mcp": {
      "type": "remote",
      "url": "https://firmenliste-mcp.cf-firmenliste.workers.dev/",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add tankstellen-firmenliste-mcp --url 'https://firmenliste-mcp.cf-firmenliste.workers.dev/' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  tankstellen-firmenliste-mcp:
    url: "https://firmenliste-mcp.cf-firmenliste.workers.dev/"
```

### Netclaw

```json
{
  "McpServers": {
    "tankstellen-firmenliste-mcp": {
      "Transport": "http",
      "Url": "https://firmenliste-mcp.cf-firmenliste.workers.dev/"
    }
  }
}
```

### Vellum

```bash
assistant mcp add tankstellen-firmenliste-mcp -t streamable-http -u 'https://firmenliste-mcp.cf-firmenliste.workers.dev/'
```

### Other

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

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-19 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 73, +7)

- [security improvement] Authorization: unverified → partial

### 2026-09-10 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-08 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-06 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (5)

### `laender_auflisten` (~61 tokens)

Länder 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` (~98 tokens)

Adresslisten suchen

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.

Input parameters:

- `land` (string)
- `q` (string, required): Suchbegriff, min. 3 Zeichen

### `liste_details` (~139 tokens)

Listen-Details & Preise

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.

Input parameters:

- `idListe` (integer, required): Listen-ID aus branchen_suchen
- `plz` (string): Optional mit umkreis_km: Umkreissuche, z. B. '80331'
- `umkreis_km` (integer)

### `angebot_erstellen` (~173 tokens)

Preisangebot erstellen

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).

Input parameters:

- `bundesland` (string): Optional, z. B. 'Bayern'
- `idListe` (integer, required)
- `plz` (string): Optional mit umkreis_km: Umkreis-Angebot (nicht mit bundesland/nur_email)
- `umfang` (string)
- `umkreis_km` (integer)

### `kaufbedingungen` (~60 tokens)

Kaufbedingungen

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

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/tankstellen-firmenliste-mcp/firmenliste-mcp#diagnostics

## Score history

- 2026-09-20: 77
- 2026-09-19: 77
- 2026-09-18: 76
- 2026-09-17: 76
- 2026-09-16: 75
- 2026-09-15: 75
- 2026-09-14: 74
- 2026-09-13: 74
- 2026-09-12: 73
- 2026-09-11: 66
- 2026-09-10: 66
- 2026-09-09: 65
- 2026-09-08: 65
- 2026-09-07: 64
- 2026-09-06: 64
- 2026-09-05: 63
- 2026-09-04: 63
- 2026-09-03: 62
- 2026-09-02: 62
- 2026-09-01: 61
- 2026-08-31: 61
- 2026-08-30: 60
- 2026-08-29: 60
- 2026-08-28: 60
- 2026-08-27: 59

## Common questions

### What is the io.github.tankstellen/firmenliste-mcp server?

io.github.tankstellen/firmenliste-mcp is listed in the public MCP registry as io.github.tankstellen/firmenliste-mcp. B2B company address data for the DACH region: search 6,400+ industry lists and get price quotes. This page covers its hosted endpoint (https://firmenliste-mcp.cf-firmenliste.workers.dev).

### Is the io.github.tankstellen/firmenliste-mcp server safe to use?

io.github.tankstellen/firmenliste-mcp scores 77 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.tankstellen/firmenliste-mcp server expose?

io.github.tankstellen/firmenliste-mcp exposes 5 tools: laender_auflisten, branchen_suchen, liste_details, angebot_erstellen, kaufbedingungen. Their descriptions and schemas cost roughly 531 tokens of context every time the server is loaded.

### Does the io.github.tankstellen/firmenliste-mcp server require authentication?

No. We connected to io.github.tankstellen/firmenliste-mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.tankstellen/firmenliste-mcp server still maintained?

io.github.tankstellen/firmenliste-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://firmenliste-mcp.cf-firmenliste.workers.dev/
- Repository: https://github.com/tankstellen/firmenliste-mcp
- Website: https://www.firmenliste.net/
- Changelog RSS feed: https://verifymcp.io/servers/tankstellen-firmenliste-mcp/firmenliste-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/tankstellen-firmenliste-mcp/firmenliste-mcp.json
- HTML version of this page: https://verifymcp.io/servers/tankstellen-firmenliste-mcp/firmenliste-mcp