Factur-X MCP MCP server

An official MCP server by Orvel that allows AI assistants to generate Factur-X PDF/A-3, CII XML, and UBL 2.1 invoices, validate them against EN 16931 rules, and extract invoice data. It supports stateless workflows, full/partial credits, and integrates with major clients like Cursor, VS Code, and Claude Code via OAuth or API keys.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Orvel

MCP endpoint (Streamable HTTP)

https://facturx.orvel.dev/mcp

Vendor documentation

What you can do with it

Generate Factur-X PDF/A-3, CII XML, and UBL 2.1 invoices
Validate invoices against EN 16931 compliance rules
Extract invoice data from AI assistant prompts
Process full and partial credits for existing invoices

Tools advertised by the last live check:

view_invoice_demo
generate_invoice
embed_xml
validate_invoice
extract_invoice
check_party
check_invoice_parties
explain_finding
get_invoice_example
draft_credit_note

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http factur-x-mcp https://facturx.orvel.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add factur-x-mcp --url https://facturx.orvel.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable factur-x-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "factur-x-mcp": {
      "url": "https://facturx.orvel.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "factur-x-mcp": {
      "type": "streamableHttp",
      "url": "https://facturx.orvel.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start factur-x-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "factur-x-mcp": {
      "type": "http",
      "url": "https://facturx.orvel.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http factur-x-mcp https://facturx.orvel.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "factur-x-mcp": {
      "url": "https://facturx.orvel.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "factur-x-mcp": {
      "serverUrl": "https://facturx.orvel.dev/mcp"
    }
  }
}

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