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mcp/harbor
Claude Desktop

LayerOne (DocX + Sign) for Claude Desktop

io.github.golayerone/layerone

MCP server for LayerOne DocX (documents & Factur-X) and Sign (e-signature) APIs.

client:Claude Desktop transport:stdio runtime:npm

Install LayerOne (DocX + Sign) in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "layerone": {
      "command": "npx",
      "args": [
        "-y",
        "layerone-mcp"
      ],
      "env": {
        "DOCX_API_KEY": "<DOCX_API_KEY>",
        "SIGN_API_KEY": "<SIGN_API_KEY>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

LayerOne (DocX + Sign) in other clients

LayerOne (DocX + Sign) MCP server