Skip to content
verify mcp Beta VerifyMCP is currently in beta. If you notice any issues, email [email protected] and we’ll put it right.

ZUGFeRD Validator

NPM · ZUGFERD-MCP-CLIENT · 2 COMPONENTS · SCANNED AUG 3

Validiert E-Rechnungen (ZUGFeRD/Factur-X, XRechnung) gegen EN 16931 mit Korrekturvorschlägen.

+23 this week 61 Trust /100
Trust breakdown (6 categories)

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. How we score →

Supply Chain Security87
  • No malware found by supply-chain analysis.Pass
  • Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.Partial
  • No install/post-install scripts declared.Pass
  • Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency19
  • Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
  • Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
  • Clear OSI-approved license (MIT).Pass
  • Actively maintained (last published 10 days ago).Pass
  • Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability62
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 609 tokens (~152/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
  • Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage96
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 87% of tool parameters carry a description.Partial
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · zugferd-mcp-client

# add to Claude Code
claude mcp add de-zugferd-validator-validator -- npx -y zugferd-mcp-client
# add to Codex CLI
codex mcp add de-zugferd-validator-validator -- npx -y zugferd-mcp-client
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "de-zugferd-validator-validator": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "zugferd-mcp-client"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add de-zugferd-validator-validator --command npx --arg -y --arg zugferd-mcp-client
# ~/.hermes/config.yaml
mcp_servers:
  de-zugferd-validator-validator:
    command: "npx"
    args: ["-y", "zugferd-mcp-client"]
// mcp.json
{
  "mcpServers": {
    "de-zugferd-validator-validator": {
      "command": "npx",
      "args": [
        "-y",
        "zugferd-mcp-client"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 3 Aug 26 +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.

  • 2 Aug 26 +33
    • Provenance: unverified → fail security
    • Install scripts: unverified → pass security
    • Known CVEs: unverified → partial security
    • Malware scan: unverified → pass security
    • Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
    • Tool coverage: 100 → unverified functional
    • Capabilities: pass → unverified functional
    • Maintenance: unverified → pass functional
    • Stability: unverified → 0.23 functional
    • License: unverified → pass functional
    • Dependency health: unverified → partial functional
    • Licence: MIT functional
  • 1 Aug 26 +27
    • Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
    • MCP protocol: unverified → pass functional
    • Tool coverage: unverified → 100 functional
  • 31 Jul 26 −51
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 −18
    • Malware scan: pass → unverified security
  • 29 Jul 26 +49
    • Provenance: unverified → fail security
    • Known CVEs: unverified → partial security
    • Install scripts: unverified → pass security
    • License: unverified → pass functional
    • Tool coverage: unverified → 100 functional
    • Schema quality: unverified → good functional
    • Maintenance: unverified → pass functional
    • Licence: MIT functional
  • 28 Jul 26 −18
    • Tool coverage: 100 → unverified functional
    • Dependency health: unverified → partial functional
    • First check of Schema quality: unverified functional
  • 27 Jul 26 38

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Analysed npm/[email protected]

Provenance none

Ecosystem: npm · Outcome: none

Dependencies 95 packages

95 packages in the resolved dependency tree · 95 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 4 exposed · ~609 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
check_consistency ~54

Prüft ob die sichtbaren PDF-Daten mit den eingebetteten XML-Daten übereinstimmen.

NameTypeReqDescription
pdf_contentstringyesBase64-kodierter Inhalt der ZUGFeRD-PDF-Datei

No output schema declared.

No examples provided.

create_invoice ~387

Erstellt aus strukturierten Daten eine valide E-Rechnung — ZUGFeRD-PDF (PDF/A-3 mit eingebettetem XML) oder reines XRechnung-XML (mit Leitweg-ID für B2G). Mehrere Positionen, alle USt-Kategorien, Rabatte/Zuschläge und Zahlungsangaben. Beträge in Cent. Stateless.

NameTypeReqDescription
allowances_chargesarrayRabatte/Zuschläge auf Dokumentebene
buyerobjectyesKäufer
buyer_referencestringLeitweg-ID / Käuferreferenz (XRechnung Pflicht)
currencystringStandard EUR
datestringyesBelegdatum (YYYY-MM-DD)
document_typestringStandard invoice. credit_note=Gutschrift/Storno, corrected=Korrektur, self_billed=Gutschriftverfahren, prepayment=Anzahlung, partial=Teilrechnung
due_datestringFälligkeit (YYYY-MM-DD)
formatstringyes'zugferd' = PDF, 'xrechnung' = XML
linesarrayyesRechnungspositionen (mindestens eine)
notestring
numberstringyesBelegnummer
payment_meansobject
payment_termsstring
preceding_invoiceobjectBezug auf Ursprungsrechnung (BT-25/26) bei Storno/Korrektur/Gutschrift
self_checkbooleanSofort gegen EN 16931 prüfen (langsamer). Standard false.
sellerobjectyesVerkäufer
seller_logostringLogo Base64 (PNG/JPG) — nur Pro/Ultra
type_codestringRoher UNTDID-1001-Code (überschreibt document_type)

No output schema declared.

No examples provided.

extract_xml ~53

Extrahiert die eingebettete XML-Datei aus einem ZUGFeRD/Factur-X PDF.

NameTypeReqDescription
pdf_contentstringyesBase64-kodierter Inhalt der ZUGFeRD-PDF-Datei

No output schema declared.

No examples provided.

validate_invoice ~115

Validiert eine E-Rechnung (ZUGFeRD/Factur-X PDF oder XRechnung XML) gegen EN 16931 und gibt strukturierte Ergebnisse mit Korrekturvorschlägen zurück.

NameTypeReqDescription
file_contentstringyesBase64-kodierter Inhalt der PDF- oder XML-Datei
file_typestringyes'pdf' für ZUGFeRD/Factur-X, 'xml' für XRechnung
profilestringErwartetes Profil (optional, wird automatisch erkannt)

No output schema declared.

No examples provided.