# E-RechnungDigital (npm · erechnung-digital-mcp)

XRechnung und ZUGFeRD lokal erstellen, lesen und prüfen. Fehlercodes wie BR-DE-15 erklärt.

- Trust score: 68/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `erechnung-digital-mcp`: 68/100 (this document), [markdown](https://verifymcp.io/servers/com-erechnungdigital-mcp/erechnung-digital-mcp.md), [page](https://verifymcp.io/servers/com-erechnungdigital-mcp/erechnung-digital-mcp)

## Channel facts

- Registry: `npm`
- Package: `erechnung-digital-mcp`
- Version: `0.1.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-11-05.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 34 of 113 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 19/100
  - Repository check failed: no source repository is declared.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 10 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 67/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 992 tokens (~165/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**: 37/100
  - Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 93/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 78% 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 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 supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the E-RechnungDigital MCP server?

E-RechnungDigital runs locally as an npm package, launched with npx -y erechnung-digital-mcp. 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 com-erechnungdigital-mcp -- npx -y erechnung-digital-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "com-erechnungdigital-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "erechnung-digital-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-erechnungdigital-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "erechnung-digital-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-erechnungdigital-mcp -- npx -y erechnung-digital-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-erechnungdigital-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "erechnung-digital-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-erechnungdigital-mcp --command npx --arg -y --arg erechnung-digital-mcp
```

### Hermes

```yaml
mcp_servers:
  com-erechnungdigital-mcp:
    command: "npx"
    args: ["-y", "erechnung-digital-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-erechnungdigital-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "erechnung-digital-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-erechnungdigital-mcp -t stdio -c npx -a -y erechnung-digital-mcp
```

### Other

```json
{
  "mcpServers": {
    "com-erechnungdigital-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "erechnung-digital-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 66, +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.

### 2026-10-29 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 63)

First indexed and scored.

## MCP tools (6)

### `get_seller_profile` (~50 tokens)

Absenderprofil lesen

Liest die gespeicherten Absenderdaten (eigene Firma, Anschrift, Steuer, IBAN) und die letzte Rechnungsnummer. Gibt einen Hinweis zurück, wenn noch nichts gespeichert ist.

### `save_seller_profile` (~279 tokens)

Absenderprofil speichern

Speichert die eigenen Firmendaten lokal (/tmp/.erechnung-digital/profile.json), damit künftige Rechnungen nur noch Kunde und Positionen brauchen.

Input parameters:

- `accountHolder` (string)
- `bic` (string)
- `city` (string, required)
- `contactName` (string): Ansprechpartner (Person oder Abteilung), Pflicht für XRechnung (BR-DE-5)
- `country` (string): ISO-Ländercode, Standard DE
- `defaultPaymentDays` (integer): Zahlungsziel in Tagen
- `defaultTaxCase` (string): Steuerfall, der für neue Positionen gilt
- `email` (string, required): E-Mail für Rückfragen zur Rechnung
- `iban` (string, required)
- `lastInvoiceNumber` (string): Zuletzt vergebene Rechnungsnummer
- `name` (string, required): Firmenname oder Name der Einzelunternehmerin / des Einzelunternehmers
- `phone` (string): Telefon, Pflicht für XRechnung (BR-DE-6)
- `postalCode` (string, required): PLZ
- `street` (string, required): Straße und Hausnummer
- `taxNumber` (string): Steuernummer vom Finanzamt, falls keine USt-IdNr.
- `vatId` (string): USt-IdNr., z. B. DE123456789

### `create_invoice` (~301 tokens)

E-Rechnung erstellen

Erstellt eine E-Rechnung: XRechnung 3.0 (CII-XML) und ZUGFeRD-PDF mit eingebettetem XML. Prüft vorher alle Pflichtangaben und liefert bei Lücken eine Liste mit Erklärlinks. Ohne seller wird das gespeicherte Absenderprofil genutzt, ohne invoiceNumber die nächste Nummer.

Input parameters:

- `buyer` (object, required)
- `buyerReference` (string, required): Käuferreferenz: Leitweg-ID bei Behörden, sonst Bestell- oder Projektnummer (BR-DE-15)
- `deliveryDate` (string): Leistungsdatum, Standard Rechnungsdatum
- `dueDate` (string): Fälligkeit, Standard Rechnungsdatum plus Zahlungsziel
- `invoiceNumber` (string): Rechnungsnummer. Leer lassen, um die nächste Nummer aus dem gespeicherten Profil zu nehmen.
- `issueDate` (string): Rechnungsdatum, Standard heute
- `lines` (array, required)
- `outputDir` (string): Zielordner, Standard /tmp/E-Rechnungen
- `paymentTerms` (string): z. B. 14 Tage netto
- `precedingInvoiceDate` (string): Datum als JJJJ-MM-TT
- `precedingInvoiceNumber` (string): Nur bei Korrekturen: Nummer der Ursprungsrechnung
- `seller` (object): Absender. Weglassen, um das gespeicherte Profil zu nutzen.
- `type` (string)

### `read_invoice` (~70 tokens)

E-Rechnung lesen

Liest eine XRechnung (CII-XML) oder ZUGFeRD-/Factur-X-PDF von der Festplatte und gibt Absender, Empfänger, Positionen und Summen als JSON zurück.

Input parameters:

- `path` (string, required): Pfad zur .xml- oder .pdf-Datei

### `check_invoice` (~83 tokens)

E-Rechnung prüfen

Prüft eine vorhandene E-Rechnung (XML oder ZUGFeRD-PDF) auf Pflichtangaben, Rechenfehler und EN-16931-Regeln. Ersetzt nicht den offiziellen KoSIT-Validator, findet aber die häufigsten Ablehnungsgründe.

Input parameters:

- `path` (string, required): Pfad zur .xml- oder .pdf-Datei

### `explain_rule` (~66 tokens)

Prüfregel erklären

Erklärt eine Validierungsregel der E-Rechnung (z. B. BR-DE-15, BR-CO-10) in einfachem Deutsch: Bedeutung, Ursache, Lösung und Link.

Input parameters:

- `id` (string, required): Regel-ID, z. B. BR-DE-15

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-erechnungdigital-mcp/erechnung-digital-mcp#diagnostics

## Score history

- 2026-11-05: 68
- 2026-11-04: 67
- 2026-11-03: 67
- 2026-11-02: 66
- 2026-11-01: 66
- 2026-10-31: 66
- 2026-10-30: 65
- 2026-10-29: 65
- 2026-10-28: 64
- 2026-10-27: 64
- 2026-10-26: 63
- 2026-10-25: 63

## Common questions

### What is the E-RechnungDigital MCP server?

E-RechnungDigital is an MCP server listed in the public MCP registry as com.erechnungdigital/mcp. XRechnung und ZUGFeRD lokal erstellen, lesen und prüfen. Fehlercodes wie BR-DE-15 erklärt. This page covers its npm package (erechnung-digital-mcp).

### Is the E-RechnungDigital MCP server safe to use?

E-RechnungDigital scores 68 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. 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 E-RechnungDigital MCP server expose?

E-RechnungDigital exposes 6 tools: get_seller_profile, save_seller_profile, create_invoice, read_invoice, check_invoice, explain_rule. Their descriptions and schemas cost roughly 849 tokens of context every time the server is loaded.

### Is the E-RechnungDigital MCP server still maintained?

E-RechnungDigital is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the E-RechnungDigital MCP server under?

E-RechnungDigital declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/erechnung-digital-mcp
- Socket report: https://socket.dev/npm/package/erechnung-digital-mcp
- Website: https://www.erechnungdigital.com/ki-assistenten
- Changelog RSS feed: https://verifymcp.io/servers/com-erechnungdigital-mcp/erechnung-digital-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-erechnungdigital-mcp/erechnung-digital-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-erechnungdigital-mcp/erechnung-digital-mcp