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?

Clone io.github.invapi-org/invapi-mcp from https://github.com/invapi-org/invapi-mcp and configure it as an MCP server in your client (Claude Desktop, Cursor, or VS Code).

What category does io.github.invapi-org/invapi-mcp belong to?

io.github.invapi-org/invapi-mcp is listed under Developer Tools MCP servers on MCPFind.

io.github.invapi-org/invapi-mcp — MCP Server for Developer Tools

@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

Set up in your AI client

AI clientOperating system

Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.

json

{
  "mcpServers": {
    "io-github-invapi-org-invapi-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@invapi/mcp-server"
      ]
    }
  }
}

Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.

Claude Desktop setup reference

Compatible MCP Clients

io.github.invapi-org/invapi-mcp works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.

Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.

Cursor~/.cursor/mcp.jsonRestart Cursor for changes to take effect.

VS Code.vscode/mcp.jsonReload VS Code window for changes to take effect.

Windsurf~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect.

Claude Code.mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.

io.github.invapi-org/invapi-mcp