Invapi MCP

Name: Invapi MCP
Author: invapi-org

by invapi-orgversion 1.0.1i★ –iRuns on your computer

Registry nameio.github.invapi-org/invapi-mcp

Install

Overview

Description from the maker (original English)

Extract, create, convert & validate invoices (UBL, CII, XRechnung, ZUGFeRD, PDF, Excel)

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Docs, sheets & office work
You need to fill in: INVAPI_API_KEY

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: INVAPI_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "invapi": {
      "command": "npx",
      "args": [
        "-y",
        "@invapi/mcp-server"
      ],
      "env": {
        "INVAPI_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add invapi --env INVAPI_API_KEY=your-value -- npx -y @invapi/mcp-server

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "invapi": {
      "command": "npx",
      "args": [
        "-y",
        "@invapi/mcp-server"
      ],
      "env": {
        "INVAPI_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "invapi": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@invapi/mcp-server"
      ],
      "env": {
        "INVAPI_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

INVAPI_API_KEY secret required env
Your API key for Invapi

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account invapi-org, which owns the repo
… 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
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 2168 servers in this category
Published to the registry more recently than 3% of the other 2168 servers in this category
Basic checks equal to or better than 100% of the other 2168 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 Invapi MCP safe?

It passed 1 of 1 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?

You need to fill in: INVAPI_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 9 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@invapi/mcp-server

MCP server for the Invapi E-Invoicing API — convert, validate, and extract invoices in UBL, CII, ZUGFeRD, Excel, and more.

Quick Start

npm install -g @invapi/mcp-server

Set your API key (get one at invapi.org):

export INVAPI_API_KEY=your-api-key

Usage

Claude Desktop

Add to claude_desktop_config.json:

"mcpServers": { "invapi": { "command": "npx", "args": ["-y", "@invapi/mcp-server"], "env": { "INVAPI_API_KEY": "your-api-key" } } } }

Claude Code

claude mcp add -e INVAPI_API_KEY=xxx invapi -- npx @invapi/mcp-server

Tools

Conversion

Tool	Description
`invapi_convert_json_to_ubl`	JSON Invoice → UBL XML
`invapi_convert_json_to_cii`	JSON Invoice → CII XML
`invapi_convert_ubl_to_json`	UBL XML → JSON Invoice
`invapi_convert_cii_to_json`	CII XML → JSON Invoice
`invapi_convert_json_to_xlsx`	JSON Invoices → Excel file
`invapi_create_zugferd_pdf`	PDF + JSON Invoice → ZUGFeRD PDF
`invapi_convert_zugferd_to_json`	ZUGFeRD PDF → JSON Invoice

Validation

Tool	Description
`invapi_validate_ubl`	Validate UBL XML against XRechnung 3.0.2 (EN 16931)
`invapi_validate_cii`	Validate CII XML against XRechnung 3.0.2 (EN 16931)
`invapi_validate_xml`	Validate XML with auto-detected format

Extraction

Tool	Description
`invapi_extract_invoice`	Extract structured invoice data from PDF or image
`invapi_extract_qr`	Extract QR code data from image

User

Tool	Description
`invapi_get_user`	Get account info and remaining API credits

Batch

Tool	Description
`invapi_batch_convert`	Run up to 100 conversion operations in a single request

Development

git clone https://github.com/invapi/invapi-mcp.git

cd invapi-mcp npm install npm run dev

License

MIT

Invapi MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

@invapi/mcp-server

Quick Start

Usage

Claude Desktop

Claude Code

Tools

Conversion

Validation

Extraction

User

Batch

Development

License