Model Context Protocol (MCP) server for ELSTER (German tax portal). Submit UStVA, prepare EUER/ESt, sync inbox + history via Puppeteer.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add elster --env ELSTER_PASSWORD='<ELSTER_PASSWORD>' -- npx -y elster-mcp-server~/.codex/config.toml
[mcp_servers.elster]
command = "npx"
args = ["-y", "elster-mcp-server"]
env = { ELSTER_PASSWORD = "<ELSTER_PASSWORD>" }
# codex mcp add elster --env ELSTER_PASSWORD='<ELSTER_PASSWORD>' -- npx -y elster-mcp-server~/.cursor/mcp.json
{
"mcpServers": {
"elster": {
"command": "npx",
"args": [
"-y",
"elster-mcp-server"
],
"env": {
"ELSTER_PASSWORD": "<ELSTER_PASSWORD>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"elster": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"elster-mcp-server"
],
"env": {
"ELSTER_PASSWORD": "<ELSTER_PASSWORD>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"elster": {
"command": "npx",
"args": [
"-y",
"elster-mcp-server"
],
"env": {
"ELSTER_PASSWORD": "<ELSTER_PASSWORD>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"elster": {
"command": "npx",
"args": [
"-y",
"elster-mcp-server"
],
"env": {
"ELSTER_PASSWORD": "<ELSTER_PASSWORD>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"elster": {
"command": "npx",
"args": [
"-y",
"elster-mcp-server"
],
"env": {
"ELSTER_PASSWORD": "<ELSTER_PASSWORD>"
}
}
}
}Environment variables
ELSTER_PASSWORD
Replace the placeholders with your own credentials and keep them out of version control.