elster mcp server for Gemini CLI

io.github.lukasschwarz/elster-mcp-server

Drive the German tax portal ELSTER via Puppeteer: submit UStVA, prepare EUER/ESt, sync inbox.

client:Gemini CLI transport:stdio runtime:npm

Install elster mcp server in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

ELSTER_CONFIG_PATH

ELSTER_PFX_PATH

ELSTER_PASSWORD

ELSTER_TAX_NUMBER

ELSTER_STATE_CODE

ELSTER_NAME

ELSTER_FIRST_NAME

ELSTER_STREET

ELSTER_HOUSE_NUMBER

ELSTER_ZIP

ELSTER_CITY

ELSTER_COUNTRY

ELSTER_HEADLESS

ELSTER_EST_SKIP_EUR

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

{
  "mcpServers": {
    "elster-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "elster-mcp-server"
      ],
      "env": {
        "ELSTER_CONFIG_PATH": "<ELSTER_CONFIG_PATH>",
        "ELSTER_PFX_PATH": "<ELSTER_PFX_PATH>",
        "ELSTER_PASSWORD": "<ELSTER_PASSWORD>",
        "ELSTER_TAX_NUMBER": "<ELSTER_TAX_NUMBER>",
        "ELSTER_STATE_CODE": "<ELSTER_STATE_CODE>",
        "ELSTER_NAME": "<ELSTER_NAME>",
        "ELSTER_FIRST_NAME": "<ELSTER_FIRST_NAME>",
        "ELSTER_STREET": "<ELSTER_STREET>",
        "ELSTER_HOUSE_NUMBER": "<ELSTER_HOUSE_NUMBER>",
        "ELSTER_ZIP": "<ELSTER_ZIP>",
        "ELSTER_CITY": "<ELSTER_CITY>",
        "ELSTER_COUNTRY": "<ELSTER_COUNTRY>",
        "ELSTER_HEADLESS": "<ELSTER_HEADLESS>",
        "ELSTER_EST_SKIP_EUR": "<ELSTER_EST_SKIP_EUR>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

elster mcp server in other clients

elster mcp server MCP server