# Firmenwatch — Swiss Company Register (remote · firmenwatch.ch)

Search and verify Swiss companies, UID status and register changes with dated official sources.

- Trust score: 82/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-22

## Components

- remote · `firmenwatch.ch`: 82/100 (this document), [markdown](https://verifymcp.io/servers/ch-firmenwatch-firmenwatch/api-mcp.md), [page](https://verifymcp.io/servers/ch-firmenwatch-firmenwatch/api-mcp)

## Channel facts

- Endpoint: `https://firmenwatch.ch/api/mcp`
- 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 2026-09-22.

- **Endpoint Security**: 80/100
  - 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 is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 67/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1014 tokens (~169/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 70/100
  - Stability observed for 21 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 98/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 92% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the Firmenwatch — Swiss Company Register MCP server?

Firmenwatch — Swiss Company Register is a hosted endpoint at https://firmenwatch.ch/api/mcp, 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 ch-firmenwatch-firmenwatch 'https://firmenwatch.ch/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ch-firmenwatch-firmenwatch": {
      "url": "https://firmenwatch.ch/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ch-firmenwatch-firmenwatch": {
      "type": "http",
      "url": "https://firmenwatch.ch/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ch-firmenwatch-firmenwatch]
url = "https://firmenwatch.ch/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ch-firmenwatch-firmenwatch": {
      "type": "remote",
      "url": "https://firmenwatch.ch/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ch-firmenwatch-firmenwatch --url 'https://firmenwatch.ch/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ch-firmenwatch-firmenwatch:
    url: "https://firmenwatch.ch/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ch-firmenwatch-firmenwatch": {
      "Transport": "http",
      "Url": "https://firmenwatch.ch/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ch-firmenwatch-firmenwatch -t streamable-http -u 'https://firmenwatch.ch/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ch-firmenwatch-firmenwatch": {
      "type": "http",
      "url": "https://firmenwatch.ch/api/mcp"
    }
  }
}
```

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.

### 2026-09-22 (score 82, +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.

### 2026-09-20 (score 81, +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.

### 2026-09-18 (score 80, +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.

### 2026-09-16 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 78, +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.

### 2026-09-11 (score 77, +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.

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

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `firma_suchen` (~183 tokens)

Schweizer Firma suchen

Sucht Firmen im Schweizer Handelsregister nach Name oder UID. Liefert Firma, UID, Rechtsform, Sitz, Adresse und Status. Nutze dies, wenn die UID nicht bekannt ist.

Input parameters:

- `anzahl` (integer): Höchstzahl Treffer, 1 bis 25
- `kanton` (string): Kantonskürzel, z. B. ZH. Erlaubt: AG, AI, AR, BE, BL, BS, FR, GE, GL, GR, JU, LU, NE, NW, OW, SG, SH, SO, SZ, TG, TI, UR, VD, VS, ZG, ZH
- `status` (string): Auf einen Status einschränken
- `suchbegriff` (string, required): Firmenname oder Teil davon, oder eine UID wie CHE-123.456.789

Output parameters:

- `code` (string)
- `datenqualitaetsstatus` (string)
- `datenstand` (string|null)
- `fehler` (string)
- `firmen` (array)
- `hinweis` (string)
- `historienabdeckung` (object)
- `lueckenlos_verifiziert_bis` (string|null)
- `neueste_verfuegbare_publikation` (string|null)
- `quellen` (object)
- `quellenhinweis` (string)
- `retry_after_seconds` (integer)
- `treffer_gesamt` (integer|null)
- `unvollstaendig_ab` (string|null)
- `weitere_treffer` (boolean)

### `firma_details` (~140 tokens)

Firmendetails abrufen

Liefert die öffentlichen Angaben zu einer Firma anhand der UID: Stammdaten, Registerkapital nur mit belegter Währung, Personen- und Organabdeckung ohne Namen, Revision, Registerbefunde, belegbare Registerbezüge und den jüngsten Verlauf sowie den aktuellen MWST-, FINMA- und SECO-Abgleich mit amtlicher Quelle, Stand und Grenzen. Der öffentliche KI-Zugang gibt keine Namen natürlicher Personen und keine Finanzschätzungen aus.

Input parameters:

- `mit_verlauf` (boolean): Meldungsverlauf mitliefern
- `uid` (string, required): UID im Format CHE-123.456.789 oder nur die neun Ziffern

Output parameters:

- `adresse` (object)
- `analyse` (object)
- `branche` (string)
- `branchenableitung` (object)
- `code` (string)
- `compliance` (object)
- `datenstand` (string|null)
- `erstmals_eingetragen` (string|null)
- `fehler` (string)
- `firma` (string)
- `geloescht_am` (string|null)
- `hinweis` (string)
- `kanton` (string|null)
- `kapital_einbezahlt` (number|null)
- `kapital_nominal` (number)
- `kapital_waehrung` (string)
- `letzte_meldung` (string|null)
- `profil` (string)
- `quellen` (object)
- `rechtsform` (string|null)
- `rechtsform_code` (string|null)
- `retry_after_seconds` (integer)
- `sitz` (string|null)
- `status` (string)
- `uid` (string)
- `verlauf` (array)
- `zweck` (string|null)

### `uid_pruefen` (~79 tokens)

UID prüfen

Prüft eine Schweizer UID auf Format und Prüfziffer (Modulo 11 nach Spezifikation des Bundesamts für Statistik) und schlägt sie im Bestand nach. Nutze dies, bevor du eine UID in ein System übernimmst — Tippfehler werden so erkannt.

Input parameters:

- `uid` (string, required): Zu prüfende UID

Output parameters:

- `code` (string)
- `datenqualitaetsstatus` (string)
- `datenstand` (string|null)
- `erlaeuterung` (string)
- `fehler` (string)
- `firma` (string|null)
- `grund` (string)
- `gueltig` (boolean)
- `hinweis` (string)
- `historienabdeckung` (object)
- `im_bestand` (boolean)
- `lueckenlos_verifiziert_bis` (string|null)
- `neueste_verfuegbare_publikation` (string|null)
- `normalisiert` (string)
- `profil` (string|null)
- `quellen` (object)
- `quellenhinweis` (string)
- `retry_after_seconds` (integer)
- `status` (string|null)
- `unvollstaendig_ab` (string|null)

### `firma_risiko` (~91 tokens)

Registerbefunde zu einer Firma

Fasst zusammen, was im Handelsamtsblatt zu einer Firma publiziert wurde und geschäftlich relevant ist: Konkurs, Liquidation, Nachlassstundung, Kapitalherabsetzung und häufige Organwechsel. Jeder Befund ist einzeln benannt und datiert. Dies ist KEINE Bonitätsauskunft und bewertet KEINE natürlichen Personen.

Input parameters:

- `uid` (string, required): UID der Firma

Output parameters:

- `befunde` (array)
- `code` (string)
- `datenqualitaetsstatus` (string)
- `datenstand` (string|null)
- `einschraenkung` (string)
- `fehler` (string)
- `firma` (string)
- `hinweis` (string)
- `historienabdeckung` (object)
- `lueckenlos_verifiziert_bis` (string|null)
- `neueste_verfuegbare_publikation` (string|null)
- `profil` (string)
- `punktwert` (number)
- `quellen` (object)
- `quellenhinweis` (string)
- `retry_after_seconds` (integer)
- `stufe` (string)
- `stufe_code` (string)
- `uid` (string)
- `unvollstaendig_ab` (string|null)
- `verfuegbar` (boolean)

### `tagesbriefing` (~183 tokens)

Tägliches Firmenbriefing

Liefert die wichtigsten strukturierten Firmenänderungen des jüngsten lückenlos verifizierten Publikationstags und zählt sie nach Art. Nutze dieses Werkzeug für einen täglichen KI-Lauf, ein Morgenbriefing oder eine automatisierte Marktbeobachtung. Optional lässt sich das Briefing nach Kanton, Meldungsart und Stichwort eingrenzen.

Input parameters:

- `anzahl` (integer)
- `arten` (array): Optional auf Meldungsarten einschränken
- `datum` (string): Optionaler Publikationstag JJJJ-MM-TT. Ohne Angabe wird die jüngste lückenlos verifizierte Grenze verwendet.
- `kantone` (array): Optional auf Kantone einschränken
- `stichwoerter` (array): Stichwörter im Firmennamen oder bereinigten Meldungstext

Output parameters:

- `anzahl` (integer)
- `auswahl_nach_art` (object)
- `begrenzt` (boolean)
- `code` (string)
- `datenqualitaetsstatus` (string)
- `datenstand` (string|null)
- `fehler` (string)
- `hinweis` (string)
- `historienabdeckung` (object)
- `lueckenlos_verifiziert_bis` (string|null)
- `meldungen` (array)
- `neueste_verfuegbare_publikation` (string|null)
- `publikationstag` (string)
- `quellen` (object)
- `quellenhinweis` (string)
- `retry_after_seconds` (integer)
- `unvollstaendig_ab` (string|null)

### `bestand_status` (~68 tokens)

Datenstand prüfen

Trennt die neueste verfügbare Publikation von der lückenlos verifizierten Grenze und meldet den Datenqualitätsstatus. Nennt zusätzlich Frische und Abdeckung von MWST, FINMA und SECO. Nutze dies, bevor du dich auf eine Auskunft verlässt.

Output parameters:

- `aktuell` (boolean)
- `alter_in_tagen` (integer|null)
- `code` (string)
- `compliance_screening` (object)
- `counts_estimated`
- `datenqualitaetsstatus` (string)
- `datenstand` (string|null)
- `ereignisstrom_bis` (integer)
- `erwartet_bis` (string|null)
- `fehler` (string)
- `firmen` (integer)
- `hinweis` (string)
- `historie_verfuegbar_ab` (string)
- `historische_vollstaendigkeit_zugesichert`
- `lueckenlos_verifiziert_bis` (string|null)
- `meldungen` (integer)
- `neueste_publikation_alter_in_tagen` (integer|null)
- `neueste_verfuegbare_publikation` (string|null)
- `publikationen` (integer)
- `retry_after_seconds` (integer)
- `unvollstaendig_ab` (string|null)
- `unvollstaendiger_scope` (string|null)
- `unvollstaendiger_status` (string|null)

## Diagnostics

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

## Score history

- 2026-09-22: 82
- 2026-09-21: 81
- 2026-09-20: 81
- 2026-09-19: 80
- 2026-09-18: 80
- 2026-09-17: 79
- 2026-09-16: 79
- 2026-09-15: 78
- 2026-09-14: 78
- 2026-09-13: 78
- 2026-09-12: 77
- 2026-09-11: 77
- 2026-09-10: 76
- 2026-09-09: 76
- 2026-09-08: 75
- 2026-09-07: 75
- 2026-09-06: 74
- 2026-09-05: 74
- 2026-09-04: 73
- 2026-09-03: 73
- 2026-09-02: 73
- 2026-09-01: 73

## Common questions

### What is the Firmenwatch — Swiss Company Register MCP server?

Firmenwatch — Swiss Company Register is an MCP server listed in the public MCP registry as ch.firmenwatch/firmenwatch. Search and verify Swiss companies, UID status and register changes with dated official sources. This page covers its hosted endpoint (https://firmenwatch.ch/api/mcp).

### Is the Firmenwatch — Swiss Company Register MCP server safe to use?

Firmenwatch — Swiss Company Register scores 82 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 Firmenwatch — Swiss Company Register MCP server expose?

Firmenwatch — Swiss Company Register exposes 6 tools: firma_suchen, firma_details, uid_pruefen, firma_risiko, tagesbriefing, bestand_status. Their descriptions and schemas cost roughly 744 tokens of context every time the server is loaded.

### Does the Firmenwatch — Swiss Company Register MCP server require authentication?

No. We connected to Firmenwatch — Swiss Company Register without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Firmenwatch — Swiss Company Register MCP server still maintained?

Firmenwatch — Swiss Company Register is still listed as active in the MCP registry. We last reached this channel on 22 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://firmenwatch.ch/api/mcp
- Website: https://firmenwatch.ch/mcp
- Changelog RSS feed: https://verifymcp.io/servers/ch-firmenwatch-firmenwatch/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/ch-firmenwatch-firmenwatch/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/ch-firmenwatch-firmenwatch/api-mcp