DATEV EXTF MCP Server: Install & Setup

Install DATEV EXTF in Claude Code

Claude Code

claude mcp add datev-extf -- npx -y @seamless-engineering/datev-extf-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "datev-extf": {
      "command": "npx",
      "args": [
        "-y",
        "@seamless-engineering/datev-extf-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the DATEV EXTF MCP server do?

Validate and write DATEV-Format (EXTF) files locally, with findings in German and English.

Is the DATEV EXTF MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does DATEV EXTF run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add DATEV EXTF to Claude Code?

Run: claude mcp add datev-extf -- npx -y @seamless-engineering/datev-extf-mcp

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