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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "elster-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "ELSTER_PASSWORD": "${ELSTER_PASSWORD}"
      }
    }
  }
}

claude mcp add elster-mcp-server -e "ELSTER_PASSWORD=${ELSTER_PASSWORD}" -- npx -y [email protected]

[mcp_servers.elster-mcp-server]
command = "npx"
args = ["-y", "[email protected]"]
env = { "ELSTER_PASSWORD" = "${ELSTER_PASSWORD}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "elster-mcp-server": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]"
      ],
      "enabled": true,
      "environment": {
        "ELSTER_PASSWORD": "{env:ELSTER_PASSWORD}"
      }
    }
  }
}

{
  "mcpServers": {
    "elster-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "ELSTER_PASSWORD": "${ELSTER_PASSWORD}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=elster-mcp-server&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsImVsc3Rlci1tY3Atc2VydmVyQDAuMS4wIl0sImVudiI6eyJFTFNURVJfUEFTU1dPUkQiOiIke0VMU1RFUl9QQVNTV09SRH0ifX0%3D"
}

{
  "servers": {
    "elster-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "ELSTER_PASSWORD": "${ELSTER_PASSWORD}"
      }
    }
  }
}

{
  "mcpServers": {
    "elster-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "ELSTER_PASSWORD": "${ELSTER_PASSWORD}"
      }
    }
  }
}

extensions:
  "elster-mcp-server":
    enabled: true
    name: "elster-mcp-server"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
    envs:
      "ELSTER_PASSWORD": "${ELSTER_PASSWORD}"
    timeout: 300

Placeholders to fill from your own secret store: ${ELSTER_PASSWORD}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies33 · weight 15

fail
deps.known_vulns1 advisory to act on (malicious, or rated high or critical with a fix available): GHSA-c475-qrg2-pj4r in [email protected] (indirect, fixed in 6.2.1); 2 more of lower severity or without a fix
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 0.6.1 has 1 known advisory (GHSA-w48q-cv73-mx4w); update @modelcontextprotocol/sdk to 1.24.0 or later
pass
deps.resolvable[email protected] resolved: 117 packages

Tool list unknown · checked 2026-10-20 15:26 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 81 / 100

provenance80

livenessn/a

freshness65

hygiene100

+repository +namespace-matches-repo ~liveness-unmeasured ~updated-115d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npm116 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 0.6.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-w48q-cv73-mx4wModel Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.24.0`
GHSA-c475-qrg2-pj4rbasic-ftp: Quadratic-time CPU denial of service in Client.list() Unix directory-listing parser (RE_LINE backtracking)	high	`[email protected]`indirect	fixed in `6.2.1`
GHSA-7pqw-9j4j-h8q3extract-zip allows arbitrary file writes through symlink archive entries	high	`[email protected]`indirect	no fix yet
GHSA-jmr9-qjv8-65gvextract-zip unvalidated symlink path traversal	high	`[email protected]`indirect	no fix yet

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`elster-mcp-server`	npm	0.1.0	–	`ELSTER_PASSWORD`

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.lukasschwarz/elster-mcp-server",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.1.0",
  "packages": [
    {
      "version": "0.1.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "elster-mcp-server",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "ELSTER_CONFIG_PATH",
          "format": "string",
          "description": "Path to a config.json that holds all settings below. Recommended."
        },
        {
          "name": "ELSTER_PFX_PATH",
          "format": "string",
          "description": "Absolute path to your ELSTER certificate (.pfx)."
        },
        {
          "name": "ELSTER_PASSWORD",
          "format": "string",
          "isSecret": true,
          "description": "Password for the .pfx certificate."
        },
        {
          "name": "ELSTER_TAX_NUMBER",
          "format": "string",
          "description": "Your Steuernummer in the format issued by your Finanzamt."
        },
        {
          "name": "ELSTER_STATE_CODE",
          "format": "string",
          "description": "Two-digit ELSTER federal-state code of your Finanzamt."
        },
        {
          "name": "ELSTER_NAME",
          "format": "string",
          "description": "Last name / company name."
        },
        {
          "name": "ELSTER_FIRST_NAME",
          "format": "string",
          "description": "First name."
        },
        {
          "name": "ELSTER_STREET",
          "format": "string",
          "description": "Street."
        },
        {
          "name": "ELSTER_HOUSE_NUMBER",
          "format": "string",
          "description": "House number."
        },
        {
          "name": "ELSTER_ZIP",
          "format": "string",
          "description": "ZIP code."
        },
        {
          "name": "ELSTER_CITY",
          "format": "string",
          "description": "City."
        },
        {
          "name": "ELSTER_COUNTRY",
          "format": "string",
          "description": "ISO country code, default DE."
        },
        {
          "name": "ELSTER_HEADLESS",
          "format": "string",
          "description": "Run Chromium headless (true/false). Default true."
        },
        {
          "name": "ELSTER_EST_SKIP_EUR",
          "format": "string",
          "description": "If 1, skip the EUER pre-hook in ESt sessions."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/lukasschwarz/elster-mcp-server",
    "source": "github"
  },
  "description": "Drive the German tax portal ELSTER via Puppeteer: submit UStVA, prepare EUER/ESt, sync inbox."
}