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io.github.invapi-org/invapi-mcp

Official registry Productivity

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

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @invapi/mcp-server
Claude Code 
claude mcp add invapi-mcp -e 'INVAPI_API_KEY=<your invapi_api_key>' -- npx -y @invapi/mcp-server@1.0.5
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "invapi-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "@invapi/mcp-server@1.0.5"
            ],
            "env": {
                "INVAPI_API_KEY": "<your invapi_api_key>"
            }
        }
    }
}

Environment variables

  • INVAPI_API_KEY required secret Your API key for Invapi

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. @invapi/mcp-server
  2. Quick Start
  3. Usage
  4. Tools
  5. Development
  6. License

@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
ToolDescription
invapi_convert_json_to_ublJSON Invoice → UBL XML
invapi_convert_json_to_ciiJSON Invoice → CII XML
invapi_convert_ubl_to_jsonUBL XML → JSON Invoice
invapi_convert_cii_to_jsonCII XML → JSON Invoice
invapi_convert_json_to_xlsxJSON Invoices → Excel file
invapi_create_zugferd_pdfPDF + JSON Invoice → ZUGFeRD PDF
invapi_convert_zugferd_to_jsonZUGFeRD PDF → JSON Invoice
Validation
ToolDescription
invapi_validate_ublValidate UBL XML against XRechnung 3.0.2 (EN 16931)
invapi_validate_ciiValidate CII XML against XRechnung 3.0.2 (EN 16931)
invapi_validate_xmlValidate XML with auto-detected format
Extraction
ToolDescription
invapi_extract_invoiceExtract structured invoice data from PDF or image
invapi_extract_qrExtract QR code data from image
User
ToolDescription
invapi_get_userGet account info and remaining API credits
Batch
ToolDescription
invapi_batch_convertRun 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

Frequently asked questions

What is io.github.invapi-org/invapi-mcp?

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

How do I install io.github.invapi-org/invapi-mcp?

It runs on your machine. In Claude Code: claude mcp add invapi-mcp -e 'INVAPI_API_KEY=<your invapi_api_key>' -- npx -y @invapi/mcp-server@1.0.5. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.invapi-org/invapi-mcp need an API key?

Yes. It expects INVAPI_API_KEY, which you set in its configuration.

Is io.github.invapi-org/invapi-mcp open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.invapi-org/invapi-mcp?

It is published by invapi-org. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.