Electronic Invoice API

app.electronic-invoice/mcpelectronic-invoice.appstreamable-httpv0.1.0Scanned 4 hours ago

Validate, generate, convert and extract EN 16931 e-invoices for businesses.

7 tools: 1 do something that can't be undone, 2 change things and 4 only read.

Reads private data · 1
Reads text others write · 0
Can send data out · 1
1 finding

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

7 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

convert_invoiceConvert an existing e-invoice from UBL to CII, CII to UBL, or XML to a ZUGFeRD/Factur-X PDF.Can send data outNo findings
Why it is in this group
- The name "convert_invoice" says "convert": a word for a change.
- The input addresses people (input.to): what it sends cannot be taken back.
What it can reach
- outboundThe input takes a destination (input.to): what the tool writes goes there.
Description, as the server wrote it
Convert an existing e-invoice from UBL to CII, CII to UBL, or XML to a ZUGFeRD/Factur-X PDF. Also accepts a ZUGFeRD/Factur-X PDF and converts its embedded XML. Validates every output and returns it only if valid. Use this for a format or container change. Do not use it to create an invoice from data (use generate_invoice), to validate only (use validate_invoice), or to extract data (use extract_invoice). Supported profiles are EN 16931 and XRechnung 3.0; other profiles return 422 unsupported_profile. B2B only. Requires the caller's own Electronic Invoice API key, sent either directly as Authorization: Bearer eia_live_... or through an OAuth 2.1 access token issued by this server. A call that reaches the API and returns 200, 400, 422 or 504 counts against the plan quota.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: false

Changes things 2Creates or changes something that can be changed back.Claude Code: ask

generate_invoiceCreate a new e-invoice file from structured JSON.No findings
Why it is in this group
- The name "generate_invoice" says "generate": a word for a change.
Description, as the server wrote it
Create a new e-invoice file from structured JSON. Builds XRechnung UBL/CII or a ZUGFeRD/Factur-X PDF, validates the result with the same rule sets, and returns the file only if it is valid. Use this when no invoice file exists yet. Do not use it to validate an existing file (use validate_invoice) or to change an existing file's syntax (use convert_invoice). Supports invoice, credit note, corrected, partial and final invoices, prepayments, and an optional EPC payment QR page for PDF output. B2B only. Requires the caller's own Electronic Invoice API key, sent either directly as Authorization: Bearer eia_live_... or through an OAuth 2.1 access token issued by this server. A call that reaches the API and returns 200, 400, 422 or 504 counts against the plan quota.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: false
open_invoice_checkOpen an upload field in the chat where the user chooses an invoice PDF or XML file.1 finding
Why it is in this group
- The name "open_invoice_check" says "open": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "open_invoice_check" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "open_invoice_check" says "open": a word for a change.
  What this check looks for
Description, as the server wrote it
Open an upload field in the chat where the user chooses an invoice PDF or XML file. The file then goes straight to validate_invoice without passing through the model, so a PDF is checked as a whole, including its PDF/A-3 container. Use this when the user wants a file checked and this client gives you no way to pass the file itself, as with Claude. Never type out a file as base64 and never read the XML out of a PDF instead. This tool needs no input and checks nothing by itself. Clients with a file parameter on validate_invoice should use that. B2B only.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false

Only reads 4Looks things up and changes nothing.Show 4 read-only tools

extract_invoiceRead data from an existing UBL/CII XML or ZUGFeRD/Factur-X PDF.Reads private dataNo findings
Why it is in this group
- The description's first verb is "read": a word for reading.
What it can reach
- private-dataThe input names a file (input.file), and the tool reads: it reads files.
Description, as the server wrote it
Read data from an existing UBL/CII XML or ZUGFeRD/Factur-X PDF. Returns JSON business terms keyed by BT/BG numbers, CSV with one row per line, or a DATEV Buchungsstapel (EXTF). Does not validate the invoice. Use this for accounting import or data analysis. Do not use it to check validity (use validate_invoice). DATEV export has hard limits: EUR only, one invoice per file, issue date inside the fiscal year, and no booking of prepayments, rounding or Skonto. DATEV output is written to the documented layout and was not tested against a DATEV installation. B2B only. Requires the caller's own Electronic Invoice API key, sent either directly as Authorization: Bearer eia_live_... or through an OAuth 2.1 access token issued by this server. A call that reaches the API and returns 200, 400, 422 or 504 counts against the plan quota.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
get_pricing_and_limitsExplain the plans, monthly quotas, rate limits, concurrency limits, billable status codes and body size limits of the Electronic Invoice API.No findings
Why it is in this group
- The name "get_pricing_and_limits" says "get": a word for reading.
Description, as the server wrote it
Explain the plans, monthly quotas, rate limits, concurrency limits, billable status codes and body size limits of the Electronic Invoice API. Works without an API key and does not call the API. B2B only. Prices and monthly quotas are published on https://electronic-invoice.app/de/api/. Use this for commercial or quota questions, not for invoice validation.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
get_service_statusCheck whether the Electronic Invoice API is up and which rule set versions it currently runs.No findings
Why it is in this group
- The name "get_service_status" says "get": a word for reading.
Description, as the server wrote it
Check whether the Electronic Invoice API is up and which rule set versions it currently runs. Calls GET /v1/health without an API key. Free, not billable, works without an account. B2B only. Use this before diagnosing a failing invoice call, but do not use it as proof that a specific API key or quota is valid.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
validate_invoiceValidate an existing e-invoice file without changing it.No findings
Why it is in this group
- The name "validate_invoice" says "validate": a word for reading.
Description, as the server wrote it
Validate an existing e-invoice file without changing it. Accepts UBL Invoice/CreditNote XML, UN/CEFACT CII XML, or a ZUGFeRD/Factur-X/XRechnung PDF. Checks EN 16931 and the XRechnung 3.0 CIUS, and returns verdict, findings and rule set versions. A PDF is also checked as a PDF/A-3 container, but only if the PDF itself is sent. Report the result of this tool; do not replace it with your own analysis of the file. Use this before sending an invoice, or to inspect a file. Do not use it to create a new invoice (use generate_invoice), to change the format (use convert_invoice), or to read accounting data (use extract_invoice). B2B only. Requires the caller's own Electronic Invoice API key, sent either directly as Authorization: Bearer eia_live_... or through an OAuth 2.1 access token issued by this server. A call that reaches the API and returns 200, 400, 422 or 504 counts against the plan quota.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged untrusted-input.

Reads private data1: Reads files, mail, messages, databases, secrets, calendars or repositories.; extract_invoice
Reads text others write0: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; convert_invoice

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnopen_invoice_check
The server marks "open_invoice_check" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "open_invoice_check" says "open": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http electronic-invoice https://mcp.electronic-invoice.app/mcp

claude mcp add --transport http electronic-invoice https://mcp.electronic-invoice.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__electronic-invoice__validate_invoice",
      "mcp__electronic-invoice__extract_invoice",
      "mcp__electronic-invoice__get_service_status",
      "mcp__electronic-invoice__get_pricing_and_limits"
    ],
    "ask": [
      "mcp__electronic-invoice__generate_invoice",
      "mcp__electronic-invoice__convert_invoice",
      "mcp__electronic-invoice__open_invoice_check"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as electronic-invoice. Review it before you use it.

Capability tags behind 2 rules

mcp__electronic-invoice__convert_invoice outbound
mcp__electronic-invoice__extract_invoice private-data

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/app.electronic-invoice/mcp/verify?hash=b7e472ec9c46d33e16be92e8cffa4db248580330bbd80acc845e7415b628bb93" | jq -e '.changed == false'

Pinned hash b7e472ec9c46, from Nov 5, 2026, 10:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/app.electronic-invoice/mcp/changes.xml

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Badge

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Source: MCP Registry. Synced Nov 5, 2026, 10:17 UTC.