InkVoice — XRechnung & E-Invoicing

Name: InkVoice — XRechnung & E-Invoicing
Author: inkvoice.net

by inkvoice.netversion 1.1.0i★ –iRuns in the cloud

Registry namenet.inkvoice/inkvoice

How to install

What it does

XRechnung and ZUGFeRD e-invoicing (EN 16931): create, validate, check Leitweg-IDs, German VAT.

Connects Runs in the cloud
Account or key Works without a key · add Authorization if you have one (often raises limits)
Category Other

Install

Pick the AI app you use, then copy the settings.

Passed 2/3 checks · What you ask goes through the maker’s server (api.inkvoice.net)

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “+ Add” → “Add custom connector” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameInkVoice — XRechnung & E-Invoicing
Remote MCP server URL · Addresshttps://api.inkvoice.net/mcp
Leave Authentication as Claude detected it, then click Add
Done
Turn it on in a chat
+ConnectorsInkVoice — XRechnung & E-Invoicing
Done
Try it
Use InkVoice — XRechnung & E-Invoicing and tell me what you can do for me, then show me one thing
✓ If Claude says it is using InkVoice — XRechnung & E-Invoicing or shows a InkVoice — XRechnung & E-Invoicing tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameInkVoice — XRechnung & E-Invoicing
Connection · Addresshttps://api.inkvoice.net/mcp
Done
Pick InkVoice — XRechnung & E-Invoicing in a chat
Start a new chat and pick InkVoice — XRechnung & E-Invoicing from your plugins before typing
Done
Try it
Use InkVoice — XRechnung & E-Invoicing and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using InkVoice — XRechnung & E-Invoicing or shows a InkVoice — XRechnung & E-Invoicing tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --transport http --scope user inkvoice https://api.inkvoice.net/mcp

Done

Type /mcp in Claude Code
You should see InkVoice — XRechnung & E-Invoicing listed as connected
Done
Try it
Use InkVoice — XRechnung & E-Invoicing and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using InkVoice — XRechnung & E-Invoicing or shows a InkVoice — XRechnung & E-Invoicing tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use InkVoice — XRechnung & E-Invoicing and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using InkVoice — XRechnung & E-Invoicing or shows a InkVoice — XRechnung & E-Invoicing tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use InkVoice — XRechnung & E-Invoicing and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using InkVoice — XRechnung & E-Invoicing or shows a InkVoice — XRechnung & E-Invoicing tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://api.inkvoice.net/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use InkVoice — XRechnung & E-Invoicing💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user inkvoice https://api.inkvoice.net/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "inkvoice": {
      "url": "https://api.inkvoice.net/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "inkvoice": {
      "type": "http",
      "url": "https://api.inkvoice.net/mcp"
    }
  }
}

Values you fill in

Authorization secret HTTP header
Optional. A personal access token from InkVoice Settings, as 'Bearer inkv_...'. Without it the five anonymous e-invoicing tools are available; with it, your clients and invoices as well.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: –
Downloads per weeki: Not on npm/PyPI
Verified domain: ✓ inkvoice.net
Licence i: No licence stated
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.1.0
Categoryi: Other
Published to registryi: Sep 20, 2026
Code last changedi: –
Maker: inkvoice.net
Repo: –
Website: inkvoice.net
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

create_zugferd
Builds a ZUGFeRD 2.x / Factur-X hybrid invoice from the same details create_xrechnung takes, and returns it as a PDF file. A hybrid is one invoice stated twice in one file: a PDF/A-3 document a person reads, carrying the same invoice inside it as EN 16931 XML a machine books. Thi
calculate_vat
Converts between net, tax and gross for a given VAT rate, in either direction. Give an amount and say whether it is net or gross, and you get all three figures back rounded to the cent. Germany's rates are 19 % (standard) and 7 % (reduced), but any rate from 0 to 100 is accepted,
create_xrechnung
Builds a German XRechnung 3.x electronic invoice (EN 16931, CII syntax) from invoice details and returns the XML as text. This is the format German public-sector buyers are legally required to receive, and that many private B2B buyers now ask for. The EN 16931 business rules are
check_leitweg_id
Checks a German Leitweg-ID — the routing identifier that goes in BT-10 of an XRechnung to a public authority. An invoice to a German public body with a wrong or missing Leitweg-ID is rejected, so this is worth checking before building a document. It verifies the structure (Grobad
validate_einvoice
Reads an existing electronic invoice and reports what is wrong with it. Accepts XRechnung and ZUGFeRD XML in either EN 16931 syntax — CII (used by XRechnung and ZUGFeRD) and UBL — and reports the syntax and profile it found along with the invoice's key fields, so it also answers

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 12, 2026

! Caution
Maker matches the repo
The registry lists no source repo, so we cannot match the publisher (inkvoice.net) to the code
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 60 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 5 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Otheri

More stars than 0% of the other 19350 servers in this category
Published to the registry more recently than 45% of the other 19350 servers in this category
Basic checks equal to or better than 43% of the other 19350 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is InkVoice — XRechnung & E-Invoicing safe?

It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT Business and above.

What can I use instead?

In the same category: World Monitor, Claude Flow, Windmill

Others in the same category

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Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

No README found in the repo

InkVoice — XRechnung & E-Invoicing

What it does

Install

Open Claude’s Connectors page

Click “+ Add” → “Add custom connector” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick InkVoice — XRechnung & E-Invoicing in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Otheri

Common questions

Others in the same category

World Monitor

Claude Flow

Windmill

README from the maker