Crelvo German Tax Data MCP MCP server

An MCP server providing hand-verified German municipal tax and fee data, including dog tax, second home tax, and wage garnishment calculations. It allows agents to look up, rank, and analyze tax regulations by city and state, with every answer citing the official legal source.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Crelvo

MCP endpoint (Streamable HTTP)

https://data.crelvo.dev/mcp

Vendor documentation

What you can do with it

Look up dog tax rates for specific German cities
Calculate wage garnishment limits under §850c
Compare second home tax regulations across states
Retrieve official tax source citations for compliance

Tools advertised by the last live check:

list_datasets
hundesteuer_lookup
hundesteuer_ranking
hundesteuer_by_state
hundesteuer_changes
zweitwohnungsteuer_lookup
zweitwohnungsteuer_ranking
zweitwohnungsteuer_changes
zweitwohnungsteuer_by_state
pfaendung_calc

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http crelvo-german-tax-data-mcp https://data.crelvo.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add crelvo-german-tax-data-mcp --url https://data.crelvo.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable crelvo-german-tax-data-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "crelvo-german-tax-data-mcp": {
      "url": "https://data.crelvo.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "crelvo-german-tax-data-mcp": {
      "type": "streamableHttp",
      "url": "https://data.crelvo.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start crelvo-german-tax-data-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "crelvo-german-tax-data-mcp": {
      "type": "http",
      "url": "https://data.crelvo.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http crelvo-german-tax-data-mcp https://data.crelvo.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "crelvo-german-tax-data-mcp": {
      "url": "https://data.crelvo.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "crelvo-german-tax-data-mcp": {
      "serverUrl": "https://data.crelvo.dev/mcp"
    }
  }
}

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